Q3 of 8 Page 132

Wildlife is essential for ecological balance and is a big attraction to tourism. Support the statement with your suggestions.

Ecology deals with the relations of organisms to one another and to their physical surroundings. The ecosystem of earth is a very complex one, with many species directly and indirectly depending upon each other for survival.
For example, the lion eats the sheep, the sheep eats grass, and the grass eats the decomposed lion and sheep which ultimately become part of the soil. (the interactions among thousands of species are much more complex)

While considering the prosperity of one species, we must not ignore the health of other species, as we all depend on each other indirectly. These complex interactions form the basis of our ecosystem.


The huge biodiversity in particular regions, such as that of the ‘Big Cats in India’ like Lion, Tiger, Leopard, etc. make it a great tourist attraction and is of great value to people.


More from this chapter

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1

Choose the best answer:

a. Species with low population numbers that are in considerable danger of elimination are termed as ––––––––––(endangered species / extinct)


b. All non-domesticated and non-cultivated biota in the natural environment are termed –––––––––––––(wildlife / ordinary life)


c. The natural vegetation in a particular area is termed as –––––––––– (flora / forest)


d. All the organisms of the animal kingdom are termed as ––––––––––– (fauna / protozoans)


e. The word ‘dinosaur’ means –––––––––––––– (terrible lizard / dragon lizard)

 2

In India, Social Forestry was started in 1976. Its aim is to promote natural forests and create man made forests on unused lands. Suggest some steps to convert a sterile land into a cultivable one.

 4

People tried several methods to keep wild animals away from the fields and villages. Power fences were erected around the fields against animals.

Is it a healthy practice? Do you have any alternative that would help both animals and man?

 5

Planting trees is known as afforestation and cutting down trees is deforestation.

Is there any permanent solution to the problem of deforestation?