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Class 7 Science Chapter 12 Question Answers - Forests - Our Lifeline

Very Short Q & A :


Q1: Name the resource that serves as green lungs and water purifying systems in nature.

Ans : Forest


Q2: Elephants and Jackals live in the deeper area of the forest.True/False

Ans : True


Q3: Forest provides a ______________ for many animals and plants.

Ans : Home


Q4: The variety of plants found in forests includes

  1. Shrubs
  2. Climbers
  3. Creepers
  4. All of the above

Ans : All of the above


Q5: What is crown of the tree?

Ans : The branchy part of the tree above the stem is known as crown of the tree.


Q6: There is similar kind of trees in every forest.True/False

Ans : False


Q7: The types of animal also differ from forest to ____________.

Ans : Forest


Q8: Name some insects found in forest.

Ans : Spiders, squirrels, ants etc.


Q9: Grass is eaten by____________ which in turn is taken by __________.

Ans : Insects which in turn is taken by frog.


Q10: Complete the following food chain: Grass --->Insects __________ --->snake ---> ________.

Ans : Grass --->Insects ---> Frog ---> Snake ---> Eagle.


Q11: Name the process by which plants release oxygen.

Ans : Photosynthesis


Q12: Plants also maintain balance of oxygen and carbon dioxide in the atmosphere.True/False

Ans : True.


Q13: The decaying animal _______________ provides nutrients to the seedling in the forest to grow.

Ans : Dungs


Q14: Name the living organism that helps in maintaining the supply of nutrients to the growing plants in the forest.

Ans : Decomposers


Q15: Forest is dynamic living__________.

Ans : Entity


Q16: Forest is full of life and ________________.

Ans : Vitality


Q17: The area surrounded by forest does not receive good rainfall.True/False

Ans : False


Q18: The advantage of living in an area nearby or surrounded by forest is:

  1. Less rainfall
  2. Less noise pollution
  3. Unpleasant weather
  4. None of these

Ans : Less noise pollution


Q19: Name some factors responsible for clearing of forests.

Ans :  Construction of roads and buildings, industrial development, increasing demand of wood etc.


Q20: Forest is on the verge of disappearing because of

  1. Overgrazing of animals
  2. Indiscriminate felling of trees
  3. Urbanisation
  4. All of the above

Ans : All of the above


Q21: Forest is source of medicinal plants. True/False

Ans : True


Q22: The insects, butterflies, honeybees and birds help flowering plants in_________.

Ans : Pollination.


Q23: A forest is a purifier of __________ and ____________ water.

Ans : Air and ground.


Q24: Name the plant that forms the lowest layer in forest.

Ans : Herbs form the lowest layer in the forest.


Q25: The decaying leaves and animal droppings in a forest enrich the soil nutrition in the form of humus. True/False

Ans :  True


Q26: Which of the following is not a forest product?

  1. Plywood
  2. Sealing wax
  3. Gum
  4. Kerosene

Ans : Kerosene


Q27: Micro-organisms act upon the dead plants to produce

  1. Humus
  2. Sand
  3. Wood
  4. Mushroom

Ans : Humus


Q28: What is canopy?

Ans : Tall trees which look like roof over other plants in the forest is called canopy.


Q29: Forests are the ___________for the forest dwelling communities.

Ans : Home


Q30: The different horizontal layers in the forest are known as understoreys.True/False

Ans : True


Q31: Forest helps in causing floods.True/False

Ans : False


Q32: Name any two forest products.

Ans : Wax and paper


Q33: _______________will endanger our life and environment.

Ans : Deforestation


Q34: What is Endemic species?

Ans : When an animal or a plant is found in a specific area, it is known as an endemic species.


Q35: The soil of the forest is moist and warm because it is covered with leaves and fruits. True/False

Ans : True


Q36: Forest also acts as natural__________________ of rain water.

Ans:  Absorber

The document Class 7 Science Chapter 12 Question Answers - Forests - Our Lifeline is a part of the Class 7 Course Science Class 7.
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FAQs on Class 7 Science Chapter 12 Question Answers - Forests - Our Lifeline

1. What are the benefits of forests?
Ans. Forests provide a range of benefits, including oxygen production, climate regulation, water cycle regulation, biodiversity conservation, and timber and non-timber forest products.
2. How do forests regulate the water cycle?
Ans. Forests play a crucial role in regulating the water cycle by absorbing rainfall, reducing soil erosion, and maintaining a consistent water supply to rivers, lakes, and underground aquifers.
3. What is the importance of biodiversity conservation in forests?
Ans. Biodiversity conservation in forests is vital as it helps maintain the balance of ecosystems, supports various plant and animal species, and contributes to the overall health and resilience of the planet.
4. How do forests contribute to climate regulation?
Ans. Forests help regulate climate by absorbing carbon dioxide through photosynthesis and storing it in their biomass. They act as carbon sinks, reducing the concentration of greenhouse gases in the atmosphere and mitigating climate change.
5. What are some non-timber forest products?
Ans. Non-timber forest products include items like medicinal plants, fruits, nuts, honey, resins, and fibers. These products have cultural, economic, and ecological importance, often providing livelihoods for local communities.
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