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प्रश्न
Explain how forests prevent floods.
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उत्तर
- Forests naturally absorb water. It allows rainwater to leak through. In the absence of trees, rainwater would fall directly on the ground, resulting in flooding.
- However, due to the presence of trees, rainwater does not fall directly to the ground. It strikes the ground gently.
- As a result, before floods, all rainwater sinks into the earth. Forests act as a natural barrier to flooding.
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संबंधित प्रश्न
Explain why there is no waste in a forest.
Micro-organisms act upon the dead plants to produce.
Chipko movement is initiated against ______.
In our country, vast tracts of forests are cleared and a single species of plant is cultivated. This practice promotes ______
Given below are a few statements related to biodiversity. Pick those that correctly describes the concept of biodiversity.
i. Biodiversity refers to the different species of flora and fauna present in an area
ii. Biodiversity refers to only the flora of a given area
iii. Biodiversity is greater in a forest
iv. Biodiversity refers to the total number of individuals of a particular species living in an area
Choose the correct option from the following.
Which among the following forest animals is the smallest?
Which of the products is not obtained from a forest?
Match Column I with Column II
| Column I | Column II | ||
| (a) | Decomposers | (i) | Dead plant and animal tissues |
| (b) | Canopy | (ii) | Habitat for wild life |
| (c) | Porcupine | (iii) | Micro-organisms |
| (d) | Humus | (iv) | Wild animal |
| (e) | Forest | (v) | Branches of tall trees |
Outline salient features of decomposition cycle in an ecosystem.
Visit a forest. Here is a list of points that would make your visit more fruitful.
- Make sure that you have permission to go into the forest.
- Make sure that you can find your way around. Get a map and go along with someone who is familiar with the area.
- Keep a record of the things you see and do. Observations make the visit interesting. Sketches and photographs are useful.
- You may record bird calls.
- Collect different kinds of seeds or hard fruits like nuts.
- Try to recognise various types of trees, shrubs, herbs, etc. Make lists of plants from different places in the forest and of different layers. You may not be able to name all the plants, but it is worth recording and seeing where they grow. Make a record of approximate heights of plants, crown shape, bark texture, leaf size, and flower colour.
- Learn to recognise the animal’s droppings.
- Interview the forest officials and the people of surrounding villages and other visitors.
You must never collect birds’ eggs, and their nests should never be disturbed.
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