Answer:
The biosphere is made up of the parts of Earth where life exists.
Answer:
The North American Free Trade Agreement :}
Explanation:
<span>More than half of Africa's source of energy comes from coal. Its coal production and waste led to several environmental problems like wildfire and diseases. In one mine leak incident in Africa, last 1953 brought poison on the water supply killed thousands of marine life.</span>
<span>As water in the oceans cools down, it tends to Sink
b)Sink
Because when water becomes warm due to the heat of the sun it floats to the surface of the ocean and cool water is in the bottom</span>
