Tag: commercial studies

Quizzes (186) Questions (1136)

Questions Related to commercial studies

Multiple choice commercial studies forests: our lifeline afforestation deforestation and its effect deforestation

Which of the following factors increases the temperature of the forests?

  1. Increase in percentage of carbon dioxide

  2. Excessive leaching

  3. Afforestation

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

Carbon dioxide is a greenhouse gas that traps heat in the atmosphere. Deforestation reduces the number of trees available to absorb CO2, leading to higher concentrations and increased temperatures.

Multiple choice commercial studies forests: our lifeline afforestation deforestation and its effect deforestation

Which of the following will be affected due to the absence of forest?

  1. Food and shelter of animals

  2. Percentage of carbon dioxide

  3. Percentage of oxygen

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

Forests provide habitat and food for animals, act as carbon sinks (regulating CO2), and produce oxygen. The absence of forests negatively impacts all these critical ecological functions.

Multiple choice commercial studies forests: our lifeline afforestation deforestation and its effect deforestation

Trees are known as lungs of forest.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Trees in general are known as 'lungs of Earth' because they absorb large amounts of carbon dioxide and release large amounts of oxygen due to photosynthesis. This helps maintain a balance between the proportion of oxygen and carbon dioxide in the atmosphere as the oxygen released by the plants during photosynthesis is utilized by various organisms including plants for respiration.

So, the correct answer is 'True'

Multiple choice commercial studies forests: our lifeline afforestation deforestation and its effect deforestation

Which of the following are the impacts of deforestation?

  1. Decline in the biodiversity.

  2. Global Warming

  3. Increase in the percentage of pollutants

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

Deforestation leads to habitat loss (biodiversity decline), increased greenhouse gases (global warming), and reduced air filtration (increased pollutants). All these are well-documented impacts.

Multiple choice commercial studies forests: our lifeline afforestation deforestation and its effect deforestation

Which of the following disaster is caused by deforestation?

  1. Infertility of soil

  2. Climatic change

  3. Loss of flora and fauna

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

Deforestation causes soil degradation, alters local and global climates, and destroys habitats for flora and fauna. All these are significant environmental disasters resulting from forest loss.

Multiple choice commercial studies forests: our lifeline afforestation deforestation and its effect deforestation

Identify the incorrect statement.

  1. Forest prevents soil erosion.

  2. Forest influences climate and water cycle.

  3. Soil helps forest to regenerate.

  4. Plants and animals in the forest are not dependent on one another.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Plants provide shelter for animals and they make oxygen for the animals to live. When animals die they decompose and become natural fertilizer plants. Plants depend on animals for nutrients, pollination and seed dispersal. 
  • Hence Plants and animals in the forest are dependent on one another.
  • Hence the given statement Plants and animals in the forest are not dependent on one another is a wrong statement.
  • So, the correct answer is 'Option D'.