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Both plants and animals use…..for respiration.
a) nitrogen                                            

b) carbon
c) water                                 

d) oxygen

d
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by at 2025-03-09 20:25:55

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All organisms use oxygen in their respiration process to get……..
a) food                                  

b) fuel
c) energy                                              
d) all of these

c

Carbon Cycle:

The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.


Carbon is constantly being removed from and released into the environment in the form of.…
a) carbonates                      

b) carbon dioxide
c) bicarbonates                   

d) carbon monoxide

b

Explanation:Carbon dioxide is used in photosynthesis and released in respiration



The amount of carbon dioxide in atmosphere is………%.
a) 0.04  

b) 21                      

c) 78      

d) 0.9

a

Plants absorb carbon dioxide to make ……..by the process of photosynthesis.
a) organic food                  

b) urea
c) nitrates                                             

d) all of these

a

Explanation:Organic food means Carbohydrate which in the form of  glucose