HELP Coral reefs support more species per unit area than any other marine
environment on Earth. How do coral reefs contribute to the overall health of
the biosphere?
A. They support a high number of tourists each year.
B. They prevent global warming.
C. They carry out a high rate of nutrient recycling.
D. They increase the chances of an extreme disturbance.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

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explanation: