DAV CLASS 5 SCIENCE - FORESTS [FILL INS]

FORESTS

 

A forest is an area where the earth is covered mainly by ………………………………………...

The very large number of trees, in a forest, support ………………………….

……………………. are an important component of the forests.

They ……………………., …………………. on hot days, ………………….. at night and act as ……………………………..

Forests create ……………………………, which in turn, affects the kinds of animals and plants that live and survive there.

Forests develop at places where the average temperature is ……………………….. and where there is an annual rainfall of …………………………...

For early man, ……………………. was his home where he got food and shelter.

Human beings and forests have always had ……………………………….

We have always been dependent on forests for getting …………………………………….

Thus, forests play ……………………….. to take care of our basic needs.

Let us now try to understand how forests play all these roles.

 

Advantages of Forests

Forests help us in the following ways:

-          The trees purify ……………. by absorbing ………………. and releasing ………………. This helps to ……………………….. over a large area.

-          Trees also help in ……………………….. by absorbing carbon dioxide which is the ……………………...

-          Forests act as …………………………. of rain water. The soil, held by ………………………, soaks in the rain water. A large portion of rain water seeps down …………………... This recharges ……………………..

-          Forests prevent ……………………….. Trees bind soil particles with …………………………. This prevents soil from being …………………………………

-          Forests prevent ……………….. as the soil, held by roots of trees, absorbs …………………………. and prevents floods.

-          Forests help to ……………………………... This leads to more …………………………………………..

-          Forests also serve as ………………………………. These include ……………………………………………….

 

Forest Products

Forests provide a number of things that are used by humans. Some forest products are:

1. ………………………….: Wood, obtained from trees in forests, is used for …………………………... It is also used for …………………………………………………..

2. ……………………………….: A number of medicines are obtained from forests. Medicinal plants, like ……………………………………………………. grow in forests. Some spices are also obtained from forests.

3. …………………………………: Gums are used for ……………………………... Some varieties of gums are used ……………………. Many resins are used to make …………………………... Many dyes, used to ………………………………………………, are also obtained from forests.

4. …………………………: Areca nut leaves are used to ……………………………... Tendu leaf is also called …………………………………………... The leaves of Tendu are used for ……………………………………….

5. ……………………: Large beehives are found in forests that are used for …………………………... Bees’ wax is used in ……………………………………………...

6. …………………….: This plant is used for making …………………………………………………………. It is also used as …………………….

 

Do you know?

Bamboo is a very useful plant. It is also used for making ……………………………………………………………...

7. Special products: …………………………………………….. are some special products obtained from forests.

 

Deforestation

We now know that forests are very useful for mankind.

However, some of us cut down trees in ……………………………… due to their own selfish interests.

This is neither right nor desirable.

Human beings cut forests because of the following reasons:

-          Need more land to ………………………………………………………...

-          Need wood for ………………………………...

-          Need some trees for specific use which they cut …………………………….

Such activities are leading to …………………………………. on earth.

The government has made laws according to which ……………………………………………………...

When some trees need to be cut, ……………………………………………...

 

Harmful Effects of Deforestation

Cutting down of trees by man is ……………………... It leads to:

-          ……………………………………… in the surrounding areas.

-          …………………………………….. in the atmosphere that can increase global warming.

-          ……………………………………….. in the nearby areas.

-          ……………………………………….. that can cause more frequent floods. These can result in widespread destruction.

-          ………………………………. of a number of plants and animals.

 

How to Protect Forests?

Throughout the world, forests are in danger.

Many plants and animals, that live in these forests, are disappearing fast.

Many people, and cultures, that depend on forests for their way of life, are also under threat.

 

Do you know?

Only ……………….. of the world’s ancient forests are left.

A forest, of the size of a football field, disappears ……………………………..

 

………………………………………… was enacted by the Indian Parliament in 1980.

According to its rules, …………………………………………………..

Many areas in India have been converted into …………………………………………………. to protect the forest cover and the animals that live in the forests.

……………………………… is a reserved land, usually declared and owned by the national government.

It is protected from ………………………………………….

……………………………………. is also a reserved area in which birds and animals are protected from hunting.

A national park differs from a sanctuary in that …………………………… is allowed inside the former, while ……………………………………. within the latter.

National parks receive more …………………………….. from the Central Government.

…………………………………….. is probably the only place in the world where the Asiatic lion is protected so that it can live in its natural surroundings.

 

A pair of Siberian cranes at the Bharatpur Bird Sanctuary

Asiatic lion at Gir National Park

 

…………………………………………………. is the largest bird sanctuary in Asia.

It is famous as a refuge for migratory birds like …………………………………………………..

These, and many other migratory birds, make it their temporary home during ……………………………..

Some other National Parks, in the Himalayan foothills, are ………………………………………………..

These provide an unforgettable wildlife experience.

-          A number of organisations are spreading awareness about the importance of forests and trees through printed as well as electronic media.

-          We all can also contribute towards forest conservation:

(i) by ………………………. the use of wood and wood products.

(ii) by …………………… products that promote destruction of forests. Many people buy fur obtained from animals, ornaments made of elephant tusks, etc. This should not be done as it leads to killing of wild animals.

(iii) by ……………………. the growing of plants as a festival and involving more and more people in this activity. This festival is celebrated in many parts of India as ……………………………...

 

Do you know?

……………………………. is a programme launched by the Indian government to increase the number of trees in our country. Every year ……………………………. are planted during this forest festival. Many schools also celebrate Van Mahotsava by ………………………... This way, they contribute towards making the earth green.

Forests are earth’s ………………………..

They are often referred to as ……………………………...

Just as our lungs absorb ………………………….. from the blood and infuse it with ……………………….., green plants absorb …………………………. during photosynthesis and in return, release …………………….. into the atmosphere.

 

Do you know?

The well-known …………………………. literally means ‘Hug the Trees Movement’. It originated from an incident in a remote village high up in the Himalayas in …………………... There was a dispute between ………………………………………… who had been allowed to fell trees in a forest close to the village.

Undeterred, the women of the ……………………… reached the forest quickly and clasped the tree trunks. They thus, prevented the workers from using their axes and saws to cut trees.

The Chipko Andolan fueled worldwide attention. It is the symbolic heading of …………………….. who put themselves in danger, in order to protect a part of the natural environment from getting harmed.

 

Keywords

afforestation :

bird migration :

canoe :

deforestation :

forest :

refuge :

scaffold :