Exercises
Auswer the following questions
(1) Write any two reasons for land degradation today
(0) Which are the two main climatic factors responsible for
liv) Name an two steps that government has taken to con
() Which one of the following is NOT a factor of soil formation?
(ii) Which one of the following methods is most appropriate
(11) White of the following is NOT in favour of the one
( Why is lend considered an important resources
(b) soil texture
soil erosion on steep slopes?
(a) shelter belts (b) mulching
and animal
(y) Suggest three ways to conserve water
2. Tick the correct a swer.
c) organic
a) time
Id terrace culte
of nature?
(a) svitch off the bulb when not in use
(b) close the tap immediately after using
(c) dispose polypacks after shopping
3. Match the followings:
(6) Land use
(a) prevent soil erosion
(ii) Humus
(b) narrow zone of contact between the list
hydrosphere and atmosphere
(iii) Rock dams
(c) productive use of land
(iv) Biosphere
(d) organic matter deposited on top soil
le) contour ploughing
4. State whether the given statement is true or false.
Answers
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Answer:
Explanation:
ANSWER:
(i) Temperature and rainfall are the two main climatic factors responsible for soil formation.
(ii) Deforestation and the indiscriminate use of chemical pesticides and fertilizers in agricultural lands are two factors contributing to land degradation.
(iii) Land is among the most important natural resources. It provides habitation to a wide variety of flora and fauna. Human beings use the land for various purposes such as agriculture, forestry, mining, building houses and roads, and setting up industries.
(iv) 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)Three ways to conserve water:
(a) Rain-water harvesting
(b) Reducing wastage of water
(c) Replenishing groundwater by promoting afforestation