Chapter-17 Forests - Our LIfeline

1. Describe how forest animals aid in the forest’s growth and regeneration.

Explanation:

The following ways that animals who live in the forest contribute to its growth and regeneration:

  • Plant seeds are spread by animals.

  • Animal excrement that has decayed gives nutrients for plant growth.

  • Humus is created by microorganisms from decaying plants and animals.



2.  Please describe how forests prevent flooding  

Explanation:

One of the many ways that trees preserve the environment is by preventing floods. Without        any trees, direct, intense rains can cause soil erosion, flooding, and soil depletion. Tree roots, however, keep the soil in place and stop soil erosion. Hence, woods and trees help to avert floods in the natural world.

3. What do decomposers do? Just two of those, please. In the jungle, what do they do?

Explanation:

The creatures that consume dead plants and animals are known as decomposers. They sanitise the forests by removing decaying corpses and adding nutrients, such as beetles and grubs, back to the forest soil.

4. Describe how forests help to keep the atmosphere’s carbon dioxide and oxygen levels in balance.

Explanation:

In forests, plants use photosynthesis to take in carbon dioxide and expel oxygen. This aids in keeping the atmosphere’s levels of oxygen and carbon dioxide balanced.

5. Describe why a forest doesn’t produce waste.

Explanation:

Because biodegradable trash is formed in a forest and is converted to humus by the work of microorganisms, there is no garbage there.

6. List the top five things that come from forests.

Explanation:

The forests provide us with medication.

(ii) Forests provide us with gum.

(iii) Wood is a resource that we may utilise to make a variety of things, including paper and furniture.

(iv) Forests provide us with food for our animals.

(v) Forests are where we find sealing wax.

7. Describe the necessity of a wide range of animals and plants in a forest.

Explanation:

The diversity of plants and animals in forests promotes plant growth and regeneration.   Herbivores are supported by a variety of plants, and they in turn provide food for carnivores. Decomposers convert dead plants and animals into humus, preserving the recycling of nutrients. Due to its diversity, the forest is a dynamic, living thing.

8. Fill in the following: Q.7.

(a) Flowering plants benefit from the insects, butterflies, honeybees, and birds.

(b) Forests are a natural purifier of and.

(c) The stratum in the forest is made up of herbs.

(d) In a forest, the decomposing leaves and animal waste improve the environment.

Explanation:

pollination, water, air, lowest, and humus in the soil.

9. Why should we be concerned about the circumstances and problems involving distant forests?

Explanation:

  • The following are reasons why we should be concerned about the forest

  • As forests disappear, the amount of carbon dioxide in the atmosphere rises. As a result, the planet warms.

  • Soil erosion is brought on by the clearing of forests.

  • The decline of forests has a negative impact on the survival of forest animals.

  • Flooding occurs more frequently when woods are absent.

  • Desertification is the process of the area becoming arid due to the loss of forests.

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