Question

Deforestation will decrease
A. Soil erosion
B. Landslides
C. Soil fertility
D. Rainfall

Answer 1

Hint: Deforestation is one in all the most important issues in global land use. The clearing of forests by humans for wood products and various other activities is thought of as deforestation.

Complete answer:
Deforestation is the process of intensive cutting of trees, which finally ends up in the destruction of forests because the trees are removed in large numbers. Numerous activities are done by humans that affect the environment. For instance, when forests are burned, their carbon is returned to the atmosphere as dioxide, a greenhouse emission that will play a major role in altering the world climate. Deforestation not only removes vegetation, but the act of clearing the forests also produces gas emissions.

Effects of deforestation:
- Loss of biodiversity: Most of the planet’s valuable biodiversity is within forests, particularly tropical ones. Moist tropical forests like the Amazon have the best concentrations of animal and plant species of any terrestrial ecosystem.
- Climate Change: Deforestation also contains a very strong contribution to global climate change. Deforestation may be a contributor to heating and is commonly cited as the key cause of the improved atmospheric phenomenon.
- Loss of habitat: One of the foremost dangerous and unsettling effects of deforestation is the loss of animal and plant species. Their loss of habitat leads to an increase of greenhouse gases. A greater amount of greenhouse gases are released into the atmosphere. Healthy forests absorb dioxide from the atmosphere, acting as valuable carbon sinks. Deforested areas lose that ability and release more carbon.
- Water within the atmosphere: Trees also help control the extent of water within the atmosphere by helping to manage the water cycle. In deforested areas, there's less water within the air to be returned to the soil. This then causes dryer soil and also the inability to grow crops. Trees extract groundwater through their roots and release it into the atmosphere. When a part of a forest is removed, the trees do not transpire this water, leading to a way drier climate. Deforestation reduces the content of water within the soil and groundwater further as atmospheric moisture.
- Soil erosion and flooding: Further effects of deforestation include erosion and coastal flooding. Trees help the land to retain water and topsoil, which provides the rich nutrients to sustain additional forest life. Without forests, the soil erodes and washes away, causing farmers to maneuver on and perpetuate the cycle. The barren land which is left behind within the wake of those unsustainable agricultural practices is then more liable to flooding. Forested soils are usually not only richer on organic matter, but also more immune to erosion, inclemency, and extreme weather events. This happens because roots help fix trees within the ground and therefore the sun-blocking tree cover helps the soil to slowly dry out.

The correct option is d, rainfall.

Note: Although forests may regrow after being cleared then abandoned, this can be not always the case, especially if the remaining forests are highly fragmented. Such habitat fragmentation isolates populations of plant and animal species from one another, making it difficult to breed without genetic bottlenecks, and also the fragments are also too small to support large or territorial animals. Furthermore, deforested lands that are planted with commercially important trees lack biodiversity and don't function habitats for native plants and animals, many of which are specific.

Developing alternatives to deforestation can help decrease the necessity for tree clearing. As an example, the need to expand the number of lands used for agriculture is pretty reasonable to deforest a section. But if people adopted sustainable farming practices or employed new farming technologies and crops the problem of deforestation can be tackled.