By signing the Kyoto Protocol, a country commits to decrease its greenhouse gas emissions. Which ecological issue does this protocol address? A. Overpopulation
B. Water Scarcity
C. Loss of Biodiversity
D. Climate Change

it addresses Loss of Biodiversity

Explanation:

if you read the question you find a key word which is decrease

hope this helped

b. regulated is the actual answer to your question.

explanation:

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.