D. global warming
The greenhouse effect is related to the phenomenon of an increase in average surface temperature known as global warming.
Answer:
84.8 centimeter square
Explanation:
An area is defined as an extent of a space or a region in a two dimension or in a plane. It is the measure of the how much space it occupies in a plane.
In the given figure,
Radius of the circle, r = 6 cm
We have to find out the area of the shaded region which is a sector.
Therefore, area of the shaded region is given by :




(rounding off)
Answer:
there is approximately 200 lakes
It is formed naturally by chemical reactions in involving solar ultraviolet radiation (sunlight) and oxygen molecules.
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