land, soil wildlife question answers

Answer the following questions:

(i). Which are the two main climatic factors responsible for soil formation?

Ans. Temperature and rainfall are the two main climatic factors responsible for soil formation.

(ii) Write any two reasons for land degradation today.

Ans. Deforestation and the indiscriminate use of chemical pesticides and fertilisers in agricultural lands are two factors contributing to land degradation.

(iii). Why is land considered an important resource?

Ans. Land is among the most important natural resources. It provides habitation to a wide variety of flora and fauna. Human beings use land for various purposes such as agriculture, forestry, mining, building houses and roads, and setting up industries.

(iv). What steps has government taken to conserve plants and animals?

Ans. Two steps that the government has taken to conserve plants and animals:

(a) Has set up national parks, wildlife sanctuaries and biosphere reserves for protecting natural vegetation and wildlife; for example, the Kaziranga National Park in Assam.

(b) Has banned the killing of lions, tigers, deer, great Indian bustards and peacocks. It has also prohibited the trade of the species of plants and animals protected under the international agreement CITES.

(v) Suggest three ways to conserve water.

Ans. Three ways to conserve water:

(a) Rain-water harvesting.

(b) Reducing wastage of water.

(c) Replenishing ground water by promoting afforestation.

2. Tick the correct answer:

(i). Which one of the following is not a factor of soil formation?

Ans. (b). Soil texture

(ii). Which one of the following methods is most appropriate to check soil erosion on steep slopes?

Ans. (c) Terrace cultivation

(iii). Which one of the following is not in favour of the conservation of the nature:

Ans. (c) Dispose polypacks after shopping

Q What does CITES stand for?

Ans;Convention on International Trade in Endangered Species of Wild Fauna and Flora.
Q : What are Deciduous trees?
Ans: Deciduous trees shed their leaves in a particular season to conserve loss of moisture through transpiration.

What are the causes of landslide?
Ans: Causes of the landslide are:
i.  Earthquakes
ii. Floods
iii. Volcanic eruption
iv. Prolonged spell of rainfall.