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a pollutions standard is a kind of standard for reducing pollutants emitted by vehicles & many vehicles emit pollution into the air -> a pollution standard can help reduce pollutants emitted by vehicles
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a pollution standard can help reduce pollutants emitted by vehicles & a vehicle inspection is when a person examines a vehicle for pollution standards -> the insepction of vehicles to meet pollution standards can help reduce pollutants emitted by vehicles
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as the use of public transportation increases , the use of automobiles decreases & bus is a kind of public transportation -> as the use of buses increases, the use of automobiles decreases
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as the use of buses increases, the use of automobiles decreases & the use of automobiles causes pollution to the environment -> as the use of buses increases, the pollution caused by using automobiles will decrease
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coal is a kind of fossil fuel & oil is a kind of fossil fuel & burning fossil fuels releases sulfur dioxide into the atmosphere -> burning coal and oil releases sulfur dioxide into the atmosphere
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burning coal and oil releases sulfur dioxide into the atmosphere & sulfur dioxide is a kind of gas & sulfur dioxide dissolving in water causes acid rain -> gases from burning coal and oil dissolving in water in the atmosphere causes acid rain
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gas-efficient engines uses less gasoline & using gasoline requires burning gasoline -> gas-efficient engines will burn less gasoline
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gas-efficient engines will burn less gasoline & burning gasoline is a source of air pollution -> gas-efficient engines will cause less air pollution
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gas-efficient engines will cause less air pollution & an engine is a part of an automobile -> using a gas-efficient engine in automobiles will cause less air pollution
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emitting sulfur dioxide causes acid rain & sulfur scrubbers can reduce the emission of sulfur dioxide -> sulfur scrubbers can reduce the cause of acid rain
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humans discarding waste in an environment causes harm to that environment & discarding is similar to throwing & garbage means waste -> humans throwing garbage in an environment causes harm to that environment
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a body of water is a kind of environment & a stream is a kind of moving body of water -> a stream is a kind of environment
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humans throwing garbage in an environment causes harm to that environment & a stream is a kind of environment -> humans throwing garbage into a stream causes harm to the stream
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a frog is a kind of aquatic animal & a mountain chorus frog is a kind of frog -> a mountain chorus frog is a kind of aquatic animal
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a mountain chorus frog is a kind of aquatic animal & bodies of water are the habitats for aquatic animals -> bodies of water are the habitats for mountain chorus frogs
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bodies of water are the habitats for mountain chorus frogs & a mountain chorus frog is a kind of animal & pollutions in animals habitat can cause the population of animals to decrease -> water pollution in bodies of water can cause the population of mountain chorus frogs to decrease
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water pollution in bodies of water can cause the population of mountain chorus frogs to decrease & polluting means something poisonous is added to an environment & a body of water is a kind of environment -> poisonous things added in water can cause the population of mountain chorus frogs to decrease
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oil is a kind of pollutant & water pollution is when humans pollute the environment with pollutants -> an example of water pollution is when humans pollute the environment with oil
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an example of water pollution is when humans pollute the environment with oil & offshore oil platforms might cause oil to leak into the water & water is a part of an environment -> offshore oil platforms might cause water pollution by leaking oil into the water
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a lawn is a piece of land covered with grass & lori uses fertilizer on her lawn & if fertilizer is used on a land, then the runoff from that land will contain fertilizer -> the runoff from the lawn will contain fertilizer
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the runoff from the lawn will contain fertilizer & a lake is a kind of body of water & runoff flows across land and ends in bodies of water -> the runoff from the lawn containing fertilizer can flow and end in the lake
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a lake is a kind of body of water & algae is found in bodies of water -> algae can be found in lake
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the runoff from the lawn containing fertilizer can flow and end in the lake & algae can be found in lake & fertilizers have a positive impact on algae growth -> the population of algae in the lake will increase because of the fertilizer in the runoff
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phytoplankton is a kind of plant & phytoplanktons are found in bodies of water & an ocean is a kind of body of water -> phytoplanktons are plants that can be found in the ocean
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algae is found in bodies of water & algae is a kind of plant & an ocean is a kind of body of water -> algae is a plant that can be found in the ocean
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phytoplanktons are plants that can be found in the ocean & algae is a plant that can be found in the ocean -> phytoplanktons and algae are plants that can be found in the ocean
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phytoplanktons and algae are plants that can be found in the ocean & plants are a source of oxygen through photosynthesis -> phytoplanktons and algae are source of oxygen in the ocean
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phytoplanktons and algae are source of oxygen in the ocean & ocean pollution can decrease the number of phytoplanktons and algae -> ocean pollution can decrease the source of oxygen in the ocean
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ocean pollution can decrease the source of oxygen in the ocean & as the amount of a source of something decreases , the amount of that something will decrease -> ocean pollution can cause the amount of oxygen to decrease in the ocean
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tuna eat fish & if an animal eats other animals for food , then the animal is the predator -> tuna is a kind of predator
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tuna is a kind of predator & tuna is a kind of fish -> tuna is a kind of predatory fish
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tuna is a kind of predatory fish & commercial harvesting from the ocean has caused populations of large predatory fish to decrease -> commercial harvesting from the ocean has caused the populations of tuna to decrease
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a rhinoceros is a kind of animal & overhunting decreases animal populations -> overhunting can decrease rhinoceros populations
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overhunting can decrease rhinoceros populations & decreasing in population will cause the population to be low & endangered means low in population -> overhunting can cause the rhinoceros to be endangered
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killing a living thing decreases the population of that living thing & hunting is when a human kills an animal for food / recreation in the wild & an animal is a kind of living thing -> hunting / overhunting decreases animal populations
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hunting / overhunting decreases animal populations & an animal is a kind of organism & if a population decreases to zero then that organism is extinct -> if hunting decreases the animal population to zero, then that animal is extinct
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an organism becoming extinct causes a change in the organism 's food web & a change in a food web can cause damage to an ecosystem -> extinctions of organisms can cause damage to an ecosystem by changing the food web
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aluminum is recyclable & recyclable means a material can be recycled / reused many times -> aluminum can be recycled
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aluminum can be recycled & recycling decreases the amount of waste sent to landfills -> recycling aluminum can decrease the amount of waste sent to landfills
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aluminum cans are made of aluminum & aluminum is recyclable -> aluminum cans are recyclable
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aluminum cans are recyclable & recyclable means a material can be recycled / reused many times -> aluminum cans can be recyled many times
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aluminum cans can be recyled many times & an aluminum can is a kind of object & an example of recycling is using an object to make a new object -> using aluminum cans to make a new object is an example of recycling
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aluminum is recyclable & an aluminum can is made of aluminum -> an aluminum can is recyclable
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metal is a kind of natural resource & aluminum is a kind of metal -> aluminum is a kind of natural resource
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aluminum is a kind of natural resource & aluminum cans are made of aluminum -> aluminum cans are made of a natural resource
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aluminum cans are made of a natural resource & recycling resources has a positive impact on the conservation of those resources -> recycling aluminum cans has a positive impact on the conservation of those resources
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trash is similar to waste & recycling decreases the amount of waste sent to landfills -> recycling decreases the amount of trash sent to landfills
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aluminum is a kind of material & aluminum is recyclable -> aluminum is a kind of material that is recyclable
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aluminum is a kind of material that is recyclable & recyclable means a material can be recycled many times -> aluminum can be recycled many times
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aluminum can be recycled many times & aluminum is a nonrenewable resource -> aluminum is a nonrenewable resource that can be recycled many times
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aluminum is a nonrenewable resource that can be recycled many times & recycling nonrenewable resources has a positive impact on the environment -> recycling aluminum has a positive impact on the environment
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recycling aluminum has a positive impact on the environment & recycling is a kind of method of disposal -> recycling aluminum is the best way to dispose aluminum
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cardboard is inexpensive in cost & cardboard is recyclable & cardboard is a kind of material & cardboard is biodegradable -> cardboard is a material that is recyclable, biodegradable, and inexpensive in cost
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the inner core is located in the center of the earth & the pressure at the center of the earth is extremely high -> the inner core of the earth is under extremely high pressure
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the inner core of the earth is under extremely high pressure & extreme high pressure causes the inner core of earth to be in solid state -> the inner core of earth is solid
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the oceanic crust mainly is made of basalt & the continental crust mainly is made of granite & basalt is more dense than granite -> the oceanic crust is more dense than the continental crust
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the mantle is the largest layer of the earth & the mantle is located between the crust and the outer core -> the mantle is the largest layer of the earth located between the crust and the outer core
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earthquakes causes older rock to be on top of younger rock & earthquakes cause rock layers to fold on top of each other -> earthquakes causes older rock layers to be on top of younger rock layers by folding the rock layers
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the mantle of the earth is mainly made of silicate & the crust of the earth is made of basalt or granite -> the mantle of the earth is mainly made of silicate and the crust of the earth is made of basalt or ganite
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basalt is a kind of material & granite is a kind of material & silicate is a kind of material -> silicate, basalt, and granite are kinds of materials
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the mantle of the earth is mainly made of silicate and the crust of the earth is made of basalt or ganite & silicate, basalt, and granite are kinds of materials & different media are made of different materials -> the mantle and the crust are different media
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the mantle and the crust are different media & waves travel at different speed in different medium -> waves will travel at different speed in the mantle and the crust
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waves will travel at different speed in the mantle and the crust & an earthquake wave is a kind of wave -> earthquake waves will travel at different speed in the mantle and the crust
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active volcanoes are most common along tectonic plate boundaries & earthquakes are most common along tectonic plate boundaries -> active volcanoes and earthquakes are most common along tectonic plate boundaries
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california is located on the boundary of two tectonic plates & earthquakes are most common along tectonic plate boundaries & massachusetts is not located on the boundary of two tectonic plates -> earthquakes are more likely to occur in california than in massachusetts
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all waves transmit energy from one place to another & an earthquake wave is a kind of wave -> earthquake waves transmit energy from one place to another
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mountains are formed by plate tectonics & the appalachian mountains are a kind of mountain -> the appalachian mountains are formed by plate tectonics
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the collision of tectonic plates are found at the convergent boundaries & the collision of the boundaries causes rocks to fold -> the collision of the tectonic plates causes rocks to fold at the convergent boundaries
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the collision of the tectonic plates causes rocks to fold at the convergent boundaries & a mountain range is formed by rocks folding upon one another -> mountains will form at the convergent boundaries by the collision of the tectonic plates
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mountains will form at the convergent boundaries by the collision of the tectonic plates & the appalachian mountains are a kind of mountain -> the appalanchian mountains are formed at the convergent boundaries by the collision of the tectonice plates
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a volcanic eruption is a kind of quick process & new land can be formed by volcanoes erupting by lava cooling -> volcano eruption can quickly form a new land when lava cools down
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the subduction of tectonic plates may cause magma to surface from underneath & the oceanic plate is a kind of tectonic plate -> the subduction of an oceanic plate may cause magma to surface from underneath
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the subduction of an oceanic plate may cause magma to surface from underneath & magma cools down when it comes to the surface from underneath -> the subduction of an oceanic plate will cause magma to surface and cool down
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the subduction of an oceanic plate will cause magma to surface and cool down & magma cooling can form volcanic mountains -> the subduction of an oceanic plate can form volcanic mountians
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volcanic ash in the atmosphere decreases the temperature by blocking the sun & emitting sulfur dioxide causes acid rain & an erupting volcano releases sulfur gas and ash into the atmosphere -> a volcanic eruption can cause acid rain and decrease the temperature
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a volcanic eruption can cause acid rain and decrease the temperature & europe was unusally cold and had acid rain in 1783 -> a volcanic eruption may have happened to cause the cold weather and acid rain in europe
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the amount of sunlight usually is the same at the locations with same latitude & the intensity of sunlight is a kind of seasonal weather pattern -> locations with same latitude has the same seasonal weather pattern of sunlight intensity
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nitrogen is a kind of gas & most means over 50% of something & the earth 's atmosphere is made of 78 percent nitrogen by mass -> nitrogen gas makes up most of the earth's atmosphere
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the earth 's atmosphere is made of 21 percent oxygen by volume & the earth 's atmosphere is made of 78 percent nitrogen by volume -> nitrogen and oxygen make up 99% of the earth's atmosphere by volume
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nitrogen and oxygen make up 99% of the earth's atmosphere by volume & most means over 50% of something -> nitrogen and oxygen make up most of the earth's atmosphere
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the earth 's atmosphere is made of 78 percent nitrogen by volume & the earth's atmosphere is made of 04% to 1% of water vapor by volume & the earth 's atmosphere is made of 21 percent oxygen by volume & the earth 's atmosphere is made of 036 percent carbon dioxide by volume -> earth's atmosphere is made of nitrogen, oxygen, water vapor, and carbon dioxide
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as altitude increases , the temperature of the air will decrease in the troposphere & an increase is the opposite of a decrease & as the altitude increases , the temperature of the air will increase in the stratosphere -> as the altitude increases, the change of air temperature are opposite in stratosphere and troposphere
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the earth 's atmosphere is made of 04 to 1 percent water vapor by volume & water vapor is a kind of greenhouse gas -> water vapor is a greenhouse gas accounting for 04 to 1 percent of the earth's atmosphere
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carbon dioxide is a kind of greenhouse gas & the earth 's atmosphere is made of 036 percent carbon dioxide by volume -> carbon dioxide is a greehouse gas accounting for 0036 percent of the earth's atmosphere
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water vapor is a greenhouse gas accounting for 04 to 1 percent of the earth's atmosphere & carbon dioxide is a greehouse gas accounting for 0036 percent of the earth's atmosphere & 04 is bigger than 0036 -> water vapor is the largest amount of greenhouse gas in the atmosphere
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the earth 's atmosphere is made of 78 percent nitrogen by mass & most means over 50% of something -> the earth's atmosphere is mostly made of nitrogen
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aurora is a kind of atmospheric phenomena & an aurora is created by charged particles interact with magnetosphere -> an aurora is an atmospheric phenomena that is created by charged particles interacting with magnetosphere
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photosynthesis is a source of oxygen & a source of something increases the amount of that something -> photosynthesis increases the amount of oxygen in the atmosphere
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photosynthesis increases the amount of oxygen in the atmosphere & the photosynthetic life performs photosynthesis -> photosynthetic life increases the amount of oxygen in the atmosphere
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early photosynthetic life is a kind of photosynthetic life & early photosynthetic life existed a long time ago -> early photosynthetic life is a kind of photosynthetic life that existed a long time ago
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photosynthetic life increases the amount of oxygen in the atmosphere & early photosynthetic life is a kind of photosynthetic life that existed a long time ago -> early photosynthetic life increased the amount of oxygen in the atmosphere a long time ago
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early photosynthetic life increased the amount of oxygen in the atmosphere a long time ago & earth had no / little oxygen a very long time ago & oxygen level describes an amount of oxygen -> early photosynthetic life increased the oxygen level in earth 's atmosphere
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oceans cover 70% of the surface of the earth & most means over 50% of something -> oceans cover most of earth's surface
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oceans cover most of earth's surface & an ocean is a kind of body of water -> water covers most of earth's surface
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majority means over 50% of something & earth contains glaciers / ice caps & ice caps and glaciers contain 69% of the freshwater on earth -> the majority of freshwater is found in ice caps and glaciers on earth
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most means over 50% of something & ice caps and glaciers contain 69% of freshwater on earth -> ice caps and glaciers contain most of the freshwater on earth
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ice caps and glaciers contain most of the freshwater on earth & glaciers are a kind of major reservoir -> glaciers are a major reservoir that contains most of the freshwater on earth
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glaciers are a major reservoir that contains most of the freshwater on earth & ice sheet is a kind of glacier -> ice sheets are a major reservoir that contains most of the freshwater on earth
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deflection is when an object changes its moving direction & the drag of wind causes the surface of the water to change its direction toward the direction of the wind -> the drag of wind causes the water to deflect toward the direction of the wind
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oceans contain most of earth 's water & water is made of hydrogen and oxygen -> ocean water is made of hydrogen and oxygen
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