Nitrogen fixation is a process that changes nitrogen within plants and soil into"nitrogen compounds"
"Mechanical Energy is the energy of motion of an object"
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Answer:
The two membranes pull apart a little and create a small pocket or sack of air. As the developing bird grows, it breathes in oxygen from the air sack and exhales carbon dioxide. Several thousand microscopic pores all over the surface of the egg allow the CO2 to escape and fresh air to get in.
Explanation:
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b. the burning of fossil fuels for energy and transportation
Answer:
i think it might Be B. but im not 100% sure but it seems to be the only logical one
Explanation:
