Lysosomes
Golgi apparatus
Cell membrane
Rough ER
Smooth ER
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Answer:
The crops has extracted the nitrates from the soil
Explanation:
Complete question
Why?
Solution
The crops has extracted the nitrates from the soil for its nourishment and metabolic requirement. Hence, the concentration of nitrate after the crop cultivation has reduced as compared to the concentration of nitrate prior to the crop cultivation.
It was probably when the earth was still Pangaea. whatever had those bones came to that spot, and so happen to die there. then others came and died and kept going.<span />
Photosynthesis can only take place when there is light.