1. Supply of wood:
The forests are made up of large amounts of trees, which, with regulated cutting, can continue to supply humans with wood needed for construction, fire-wood, ship-building (or at least before in history), and others.
2. Photosynthesis
The forests use Photosynthesis to take in carbon dioxide & monoxide (created by us humans), and with the process of photosynthesis, release Oxygen as it's waste (which we humans use).
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Yes it was.................................
A coral reef is an underwater ecosystem most commonly found in shallow, tropical water.
Answer:
B. 42; 48
Explanation:
sin x = cos (90-x)
eg sin 42 = cos(90-42) = cos 48