organisms which synthesise carbohydrates from inorganic compounds using radiant energy are called:
in a food chain organism which synthesise carbohydrates from inorganic compounds using radiant energy are called producers. these are autotrophs and make food for consumers.
hydrocarbons are the compounds of hydrogen and carbon. they are the simplest of all the organic compounds.hydrocarbons are of two types:(i) organic (ii) inorganic we are being asked to classify the following reactions based on the following categories:combination/synthesis → multiple reactants combine to form a single productw/o change in oxidation numbersa + b → abdecomposition →reactant splits into multiple products with no change in oxidation numbersab → a + bcombustion reaction: reaction with oxygen that produces carbon dioxide and waterhydrocarbon + o2 → co2 + h2osingle displacement →single element displaces another element in a compoundab + c → ac + b[readmore]let’s analyze the given reactionsa. fe2(co3)2 (s) → fe2o3(s) + 2co2(g) break down of fe2(co3)2(s) to its component ions → decomposition reactionanswer: this is a decomposition reaction.b. 2 c6h11oh(l) + 17 o2(g) → 12co2 (g) + 12h2o(l) reaction with oxygen that produces carbon dioxide and water → combustion reactionanswer: this is a combustion reaction.c. p4o10(s) + 6h2o(l) → 4h3po4(aq) two or more substances combine to form a single compound → combination reactionanswer: this is a combination reaction.d. 2c(s) + mno2(s) → mn(s) + 2co(g) substitute one element for another element in a compound →single-displacement reaction answer: this is a single-displacement reactione. 2naclo3 (s) → 2nacl(s) + 3o2(g)break down of compound into its simpler substances → decomposition reactionanswer: this is a decomposition reaction a) van der waals (present, all molecule/atoms contain it)[readmore](b) dipole-dipole (present, c=o creates a partial charge on c and o)(c) hydrogen bonding (not present, h-bonds are only present in compounds with h attached on o, n or f)(d) ion-ion (not present, only appears on compound with full charges) http://en.wikipedia.org/wiki/genetically\_modified\_food following are some of the technological inventions in climate change innovation:


* giant vacuum cleaners are invented to reduce cardon dioxide concentration from the atmosphere by sequestrating it.
* many satellites are developed in to spot methane leaks as methane traps up to 80 times of heat in comparison to carbon dioxide. satellites are foreseen to help reduce methane emission from the oil and gas industry by 50%.
* an engineer pioneered an underwater pipe to pump cold water into reefs cooling them down since coral reefs are highly sensitive to increment in heat and temperature. the process is known as coral bleaching.
* plastic is providing enormous harm to the wildlife which went on to bring fluctuations in the climate change. introduction of concept of plastic-eating enzymes that break downs plastic in a few numbers of days wherein plastic usually takes years and decades to undergo decomposition. saprotrophic nutrition 
is a mode of nutrition in which the organisms feed upon dead and
decaying plants and animals


organisms which follow this mode of nutrition
are known as 
saprotrophs

for example:
mushrooms pure substances are made up of same type of particles or atoms. all the elements and compounds are pure substances because they contain the same kinds of particles. examples: hydrogen, carbon dioxide answer: oxygen gas is responsible for combustion. combustion is characterized as a rapid exothermic reaction that releases a significant amount of energy in the form of heat and flames as combustion reactions that can spread through a suitable medium. combustion is the outcome of dynamic or time-dependent activities between atoms, molecules, radicals, and solid boundaries at the molecular level. for combustion to occur, three conditions must be met, which are there should be a combustible material. there should be a supporter of combustion. the combustible material is heated to the ignition temperature. the presence of fuel has a significant effect. the existence of oxygen or air. the ignition temperature is kept constant. hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants (usually crops) without soil, by using mineral nutrient solutions in an aqueous solvent. terrestrial plants may grow with their roots exposed to the nutritious liquid, or, in addition, the roots may be physically supported by an inert medium such as perlite, gravel, or other substrates. Absorption is a stage of food processing that follows digestion. In the gastrointestinal tract, the process of digestion is associated with the breakdown of complex biomolecules (i.e., proteins, carbohydrates, and fats) into simple monomer structures including amino acids, monosaccharides, fatty acids, etc. During the process of absorption, these simple bioorganic compounds are transported from the intestine lumen into the blood.