4 Questions
What is the percentage of oxygen in the air?
21%
How is the oxygen element circulated through the biosphere?
Oxygen cycle
What process do human beings and animals take oxygen from the atmosphere?
Respiration
What happens during the decomposition of dead organisms?
Takes in oxygen from the atmosphere
Explore the process through which nitrogen moves from the atmosphere to the soil, organisms, and back to the atmosphere. Understand the significance of nitrogen in various biological components like proteins, nucleic acids, and chlorophyll.
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