Environmental Studies · Geography

Deforestation and Land Degradation

2,619 Questions

Deforestation and land degradation address the environmental impacts of human activities on natural ecosystems. Key areas include soil erosion, forest fires, and the consequences of overgrazing. These subjects frequently appear in the geography and environmental science sections of competitive exams.

Causes of deforestationForest fires consequencesSoil erosion factorsDesertification impactsAgroforestry benefitsReforestation advantages

Deforestation and Land Degradation Questions

Multiple choice

Consider the following programmes:

  1. Afforestation and development of wastelands
  2. Reforestation and replantation in existing forests
  3. Encouraging the wood substitutes and supplying other types of fuel
  4. Promotion of wide use of insecticides and pesticides to restrict the loss of forest area from degradation caused by pests and insects.

The National Forest Policy of 1988 includes

  1. 1, 2, 3 and 4

  2. 2 and 4

  3. 1, 3 and 4

  4. 1, 2 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

National Forest Policy, 1988 describes the protection of forest and development of forest. It does not describe the use of insecticide and pesticide in forest areas.

Multiple choice

Which example shows a chemical change that causes decomposition?

  1. leaves growing on a tree

  2. a branch breaking into smaller pieces

  3. fruit decaying on the ground after falling off a tree

  4. flower petals wilting due to a lack of water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Decay or decomposition is a chemical process where organic matter is broken down into simpler substances by microorganisms, changing its chemical composition.

Multiple choice social studies precautions for natural disasters tsunami and floods natural disasters and hazards monsoon phenomena and its mechanism major hazards in india and prevention hazards disasters - case studies man made disaster

Deforestation results in which of the following?

  1. Drought

  2. Floods

  3. Soil erosion

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Forests naturally absorb water from rainfall and slowly release the water into the rivers. After deforestation, rainfall flows too quickly to the rivers, stripping the topsoil and causing erosion and flooding to occur. When these floods break the river's banks, further problems arise as the path of the river changes and further soil erosion occurs along the river's new path. Deforestation also makes an area more arid, contributing to droughts.

Multiple choice economics environment pollution environment and pollution for a pollution free nature natural resources- air, water and land

Cutting of trees decreases:

  1. pollution level

  2. temperature

  3. fertility of soil

  4. carbon dioxide level
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Deforestation means cutting of trees. It is a major cause which leads to the change in soil properties. The nutrients are not replenished in the soil and the roots cannot hold the fertile soil in a place, leading to erosion. 

Deforestation also result in an increase of pollution level, temperature and carbon dioxide level.

Multiple choice evs - i receding water table water and ocean conservation water resources and conservation water conservation and irrigation

Forest control drought through

  1. Lot of water plants

  2. Increasing rainfall

  3. Retention of water and prevention of erosion

  4. Functioning as water shed
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Forests helps in producing rainfall. More are the trees, the more water gets absorbed into clouds and the more it helps in rain falls. The roots of a tree make gaps in the soil so that when it rains the water can sink in before being absorbed by the soil. These spaces also allow air and water to reach the roots of the plants.  If the forests disappear, there will be less rain resulting in dryer conditions, that eventually lead to drought. Once this happens, the damage is extensive making it difficult to plant more trees or plants later because the soil is so hard and dry. When trees removed using heavy machinery, the soil is pushed down and the gaps fill in. Because all plants and trees need that water and air to reach roots, the conditions become unfriendly for new growth.

Multiple choice importance of waste disposal need and method for reducing, reusing and recycling waste geography

Which of the following must be practised to preserve and conserve the environment?

  1. Deforestation

  2. Recycling

  3. Soil erosion

  4. Increase in pollution
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Deforestation is the permanent removal of trees to make room for something besides forest. This can include clearing the land for agriculture or grazing, or using the timber for fuel, construction or manufacturing.

Soil erosion is the displacement of the upper layer of soil, it is one form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice, snow, air, plants, animals, and humans.
As  deforestration, Soil erosion, and increase in pollution destroy the environment, Reecycling preserves and conserve the environment
 

Multiple choice chemistry water: a natural resource water resources and conservation receding water table water conservation and irrigation

Which of the following increase the rate of percolation of rain water into the soil?

  1. Constructing check dams

  2. Vegetation and trees

  3. Overgrazing

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Check dams are specifically designed to slow down the flow of runoff, which increases the time water spends on the soil surface, thereby significantly increasing the rate of percolation into the groundwater.

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Deforestation leads to a _________.

  1. Increase in water holding capacity of soil

  2. Decrease in water holding capacity of soil

  3. Increased fertility of soil

  4. Decreased pollution level
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Deforestation leads to a decrease in water holding capacity of the soil. The movement of water from the soil surface to the ground  may lead to floods.

Multiple choice geography urban settlements urban land use and urban problems and solutions land use land use patterns

What factors affect the land use in rural areas?

  1. Soil, Climate

  2. Irrigation facilities

  3. Type of Slope

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Land use is the function or functions that a man applies to the land available to him. The interaction between geographical factors and man have resulted in land use. There are numerous factors affecting land use. Following factors affect the land use in rural areas: Climate, soil, type of slope, Irrigation facilities etc.

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

The quantity of $CO _{2}$ in atmosphere can be decreased by :

  1. Rain

  2. Forests

  3. Vegetation

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plants play a very important part in reducing the amount of $CO _2$ in atmosphere, plants use $CO _2$ to make food and release oxygen, during rain, water get reacted with $CO _2$ in the atmosphere and form $H _2CO _3$ and hence reduce the amount of $CO _2$ in the atmosphere.

Multiple choice economics environment pollution introduction to environmental pollution introduction to pollution environment and pollution

__________  is the deterioration (destruction) of the earths land surfaces, often directly or indirectly as a result of mans activities and their misuse of land resources.

  1. Land pollution

  2. Soil erosion

  3. Deforestation

  4. Enrichment of soil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Land pollution is the deterioration (destruction) of the earths land surfaces, often directly or indirectly as a result of mans activities and their misuse of land resources.
It occurs when waste is not disposed of properly, or can occur when humans throw chemicals onto the soil in the form of pesticides, insecticides and fertilizers during agricultural practices.