NCERT Solutions for class 8 Geography Land, Soil, Water, Natural Vegetation and Wildlife Resources

Exercise

Q1: Which are the two main climatic factors responsible for soil formation?

Ans: The two climatic factors responsible for soil formation are temperature and rainfall.

Q2: Write any two reasons for land degradation today?

Ans: The two reasons for land degradation today are construction activities and deforestation.

Q3: Why is land considered an important resource?

Ans: The land is considered an important resource because everything that we see around us such as schools, hospitals, and houses are made on it, even the agricultural activities are done on the land.

Q4: Name any two steps that government has taken to conserve plants and animals?

Ans: The government has taken the following steps to conserve plants and animals:

1. They have encouraged awareness program such as Vanmahotsav to create awareness among people.
2. They have created Biosphere Reserves to protect plants and animals from illegal killing.

Q5: Suggest three ways to conserve water?

Ans: Water can be conserved by the following methods:

1. Do not dump garbage into water bodies.
2. Sewage water should be treated properly before releasing into rivers.
3. Modern methods of irrigation such a sprinkler system and drip irrigation system must be adopted to conserve water.

Q2: Tick the correct answer:

1. Which one of the following is not a factor of soil formation?

Ans: (b) Soil texture

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

Ans: (c) terrace cultivation

3. Which one of the following is not in favour of the conservation of nature?

Ans: (c) dispose polypacks after shopping

Q3: Match the following:

Ans:

Land use	Productive use of land
Humus	Organic matter deposited on top soil
Rock dams	Prevent soil erosion
Biosphere	Narrow zone of contact between the lithosphere Hydrosphere And Atmosphere

Q4: State whether the given statement is true or false. If true write the reasons:

i. Ganga Brahmaputra plain of India is an overpopulated region.

Ans: True, because Ganga-Brahmaputra plain is suitable for construction activities such as of roads, hospitals, schools and industries.

ii. Water availability per person in India is declining.

Ans: True, the water availability per person in India is declining because the population is increasing rapidly.

iii. Rows of trees planted in the coastal areas to check the wind movement in is called intercropping.

Ans: False

iv. Human interference and change of climate can maintain the ecosystem.

Ans: False

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