Ncert -Class10- Very Short Answer-Geography-Ch1- Resource and Development

Q1. Give one difference between renewable and non renewable resources.

 Ans : Renewable: Replenished by nature and may be overused e. g., crops and plants. Non-renewable: which get exhausted after years of use. e.g, crude oil.

Q2. What is Agenda 21? List its two principles.

 Ans : Agenda 21 was adopted at first International Earth Summit held in 1992 at Rio de Janerio Brazil. The two principles are as follows:

a. To combat environmental damage, pov¬erty, disease through global cooperation on common interests, mutual needs and shared responsibilities.

b. Every local government should draw its own local Agenda 21.

Q3. Why is it essential to have resource planning? Explain any three reasons.

Ans : a. If the present trend of resource depletion by few individuals continues, the future of our planet is in danger.

b. Planning is essential for sustainable existence of all forms of life.

c. Indiscriminate exploitation of resources has led to global ecological crises.

Q4. Distinguish between red soil and laterite soil stating any three points of distinction.

 Q5. Mention any three features of arid soils.

 Ans : Features of arid soils :

1. Arid soils range from red to brown in colour.

2. They are generally sandy in texture and saline in nature.

3. Due to dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture.

4. The lower horizons of the soil are occupied by Kankar because of the increasing calcium content downwards.

Q6. Land is a natural resource of utmost importance’. Justify the statement with appropriate arguments.

Ans : a. We live on land, we perform our economic activities on land and we use it in different ways.

b. It supports natural vegetation, wildlife, human life, economic activities, transport and communication systems.

c. It is an asset of a finite magnitude.

Q7. How can you contribute to minimize the pollution. Explain.

Ans : We can contribute to minimize the pollution by:

 a. Planting more plants and trees.

b. Using non-conventional sources of energy such as solar and wind energy.

c. Using public transport instead of personal car/ motor bike etc.

d. Saving water and electricity.

Q8. Define the following terms: a. Current fallow land b. Other than current fallow c. Cultural waste land

Ans : a. Current fallow land: Left uncultivated / for one or less than one agricultural year.

b. Other than current fallow: Left uncultivated for past 1 to 5 agricultural years.

c. Cultural waste land: Left uncultivated for more than 5 agricultural years.

Q9. What is meant by the term “resource”? List the types of resources classified on the basis of its ownership.

 Ans : a. Resource: Everything available in our environment which can be used to satisfy our needs, provided, it is technologically accessible, economically feasible and culturally acceptable is known as a resource.

b. Types of resources on the basis of ownership are: Individual, community, national and international.

Q10. Distinguish between stock and potential resource. Give one example of each.

Q11. How are alluvial soils formed? How is Bangar different from Khadar?

Ans : Alluvial soil: It is soil formed by the sediments deposited by river water.