If the number of trees on earth continues to decrease significantly, what might be the result?

Answer: c. a and b

Trees play vital roles in the production of oxygen as well as the fixation of carbon from . As trees use nitrogen, phosphorus and water as nutrients for growth, their diminishing numbers would change the balance between these three elements significantly.

Thus, during rains, the water level will rise much faster and higher in the absence of trees. These could possibly lead to increasing cases of devastating landslides.

The correct answer is (C) a and b

As we know that tree roots hold the earth in place, so if the number of trees on earth continues to decrease significantly, erosion could occur without the tree roots to hold the earth in place. Similarly trees absorb carbon dioxide from the atmosphere and release oxygen into the atmosphere, so if the number of trees on earth continues to decrease significantly, less oxygen released into the atmosphere and more CO2 buildup.

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