NCERT Class VII Science Solutions: Chapter 17-Forests: Our Lifeline Part 2 (For CBSE, ICSE, IAS, NET, NRA 2023)
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Question 8:
Which of the products is not obtained from a forest?
- Honey
- Catechu
- Gum
- Ginger
Answer: D
Question 9:
The branchy part of a tree above the stem is known as
- Crown
- Canopy
- Sapling
- Humus
Answer: A
Question 10:
Forests are not responsible for
- Providing medicinal plants.
- Maintaining the flow of water into the streams.
- Creating flood conditions.
- Absorbing rainwater and maintaining water table.
Answer: C
VERY SHORT ANSWER QUESTIONS
Question 11:
Paheli while moving in a forest observed that there was no noise pollution, though lots of heavy vehicles were passing from the nearby highway. Explain why?
Answer:
Forest absorbs the noise.
Question 12:
State whether the following statements are true or false. If false, give the correct statement.
- Forests influence climate, water cycle and air quality.
- In a forest, trees form the uppermost layer, followed by herbs. The shrubs form the lowest layer of vegetation.
- The forest keeps on growing and changing and can regenerate.
- Forests protect the soil from erosion.
Answer:
- Forests influence climate, water cycle and air quality. (True)
- In a forest, trees form the uppermost layer, followed by herbs. The shrubs form the lowest layer of vegetation. (False)
Hint: the sequence is trees, shrubs and lowest one herbs.
- The forest keeps on growing and changing and can regenerate. (True)
- Forests protect the soil from erosion. (True)
Question 13:
Paheli wrote a food chain in the following way:
The chain is not in the correct order. Help her to write the food chain correctly.
Answer: