ncert solutions for class 7 social science geography chapter 5
what is precipitation?
precipitation is the deposition of moisture from the atmosphere onto the earth’s surface. this may be in form of rain, hail, frost, fog, sleet or snow.
i neeeed help aswell 17 questions connexus 7th grade Rain creates petrichor instead solution: there are five common features in stanza 2. these features are the sun, the air, the water, peaceful harvest, hands and the labour. acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low ph). describe a river. directions: find the relation between the first pair of words given below and select the word from the given options that bears the same relationship with the other word given in the set:breeze : cyclone : : drizzle : ? answer: k=7 challenges facing northern eurasia quiz
100% correct 
1. d
2. b
3. islam then eastern orthodox church
4. a
5. a
6. b
7. shrinkage of the arial sea 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 sylvia frank chlh 274 homework problems chapter 3 1. a. crude death rate: total populace death in a specific span-time at the mean year. b. age-specific rate: total incidence occurred in a specific-age group of the populace in a specific span time. c. cause-specific rate: total death of a populace from a specific-cause in a specific span-time at the mean year. d. proportional mortality ratio: total death within a populace due to a specific-cause divided by the total death in the populace e. maternal mortality rate: incidence of death because of birth of a child or due to pregnancy associated complications. f. infant mortality rate: rate of event of newborn death over a year by birth of newborn over a same interval. g. neonatal mortality