Question

22. Read the text below and answer the following questions;

People have been deforesting the Earth for thousands of years. Direct causes of deforestation are

agricultural expansion, wood, unsustainable forest management, mining, infrastructure projects such as

road building and urbanization. Every species has a role to play in the ecosystem. Hence, conservation is

essential. About 1,300 plant species are endangered and 20 species are extinct. The World Conservation

Union’s Red List has named 352 medicinal plants of which 52 are critically threatened and 49

endangered. Quite a few animal species are also endangered and some have become extinct. Pollution

due to chemical and industrial waste, acid deposits, introduction of alien species and reckless cutting of

the forests to bring land under cultivation and habitation, are also responsible for the imbalance. Except

in some inaccessible regions, the vegetation in most of the areas has been modified or replaced or

degraded by human occupancy. Human beings used them indiscriminately and this has led to the

depletion of resources.

To protect the flora and fauna of the country, the government has taken many steps. Eighteen biosphere

reserves have been set up in the country to protect flora and fauna. Ten out of these have been included

in the world network of biosphere reserves.

22.1 What is the most common reason for the maximum depletion of the forest cover?

(a) Increasing area under agriculture (b) Animal rearing (c) Illegal hunting (d) Acid rain

22.2 Which among the following is not included in the World network of biosphere reserves?

(a) The Sundarbans (b) The Gulf of Mannar (c) Simlipal (d) Dibru Saikhowa

22.3 How many plant species in India are endangered ?

(a) About 1320 (b) About 1300 (c) About 1280 (d) About 20

22.4 What are alien species also called as;

(a) Endemic(b) Indigenous(c) Exotic (d) None of the above



PLEASE TELL FAST​

Answer 1

Answer:

22.1- d) acidic rain

22.2- c) simlipal

22.3- b) about 1,300

22.4 c) exotic