Which of following is/are caused due to deforestation?

$\text{Correct option: D}$

$\text{Solution:}$

Option A:

$?$ Soil erosion is the removal of topmost fertile layer of soil along with the flowing water.

$?$ It is more evident in the places with less number of plants or trees. Because the plant roots hold the soil particles very tightly and prevent their eradication, thus, prevents the soil erosion.

$?$ Deforestation causes decrease in the number of trees, so when there is heavy rainfall occur, the rate of soil erosion increases.

Option B:

$?$ Soil particles can hold the water in the spaces between them.

$?$ Deforestation causes removal of soil particles that decreases the water-holding capacity of the soil. That's why, enough water cannot leach down in the soil which results in the depletion of water in the catchment areas.

Option C:

$?$ Global warming is the rise in earth's temperature due to increased concentration of green house gases like carbon dioxide.

$?$ Plants use the atmospheric carbon dioxide and release oxygen that reduces the global warming.

$?$ Deforestation causes reduction in trees, so the excess of carbon dioxide cannot be used that causes increase in its concentration in the atmosphere. Increase in concentration of these gases cause global warming.

Option D:

$?$ Soil erosion, depletion of groundwater in an area and global warming, all are the results of deforestation.

$?$ Deforestation is the decrease in number of trees that results in decrease of forest area. It occurs due to human activities as well as due to natural calamities.

Hence the correct option is option D.