plz can anyone give me important questions of chapter 1 resources and development of class 10
Answers
Question .1. What are natural resources?
Answer : Natural gifts in the form of land, water, vegetation and minerals are called natural resources and Rule.
Question .2. Give examples of human-made resources?
Answer : Examples of human-made resources are:-
(i) Buildings (ii) Villages (iii) Cities (iv) Machines (v) Industries (vi) Roads (vi) Railways
Question .3. How was black soil formed?
Answer : Black soils have been formed from the weathered lava flows found in the Deccan Trap region.
Question .4. Where are black soils found in India?
Answer : Black soils are found in Maharastra, Western Madhya Pradesh and Gujarat states of India.
Question .5. Why is conservation of resources necessary?
Answer : Conservation of resources is necessary means the resources should be used in a judicious and planned way. Non-renewable resources like minerals demand extra care as they cannot be renewed.
Question .6. Name inexhaustible resources of energy?
Answer : Conservation of resources is necessary means the resources should be used in a judicious and planned way. Non-renewable resources like minerals demand extra care as they cannot be renewed.
Question .7. What is resource development?
Answer : Resource development is not an exploitation but preservation and reuse of the resources to satisfy human need.
Question .8. What is resource planning?
Answer : It is a technique or skill of proper utilization of resources. It involves the three stage as follows:-
(i) Preparation of inventory of resources
(ii) Evaluation in terms of availability for development
(iii) Planning for exploitation of resources.
Question .9. Classify resources on the basis of origin and availability?
Answer : Types of resources on the basis of their origin:-
(i) Biotic
(ii) Abiotic
Types of resources on the basis of their availability:-
(i) Renewable or inexhaustible resources
(ii) Non-renewable or exhaustible resources
Question .10. Give examples each of resources on the basis of origin?
Answer : (i) Biotic resources:- forest and animals.
(ii) Abiotic resources:-water and soil.
Question .11. What do you mean by land degradation?
Answer : Land degradation is the depletion of the land due to faulty agricultural practices, overgrazing, deforestation and mining.
Question .12. Name the biotic minerals?
Answer : Land degradation is the depletion of the land due to faulty agricultural practices, overgrazing, deforestation and mining.
Question .13. What precaution should be taken while using the natural resources?
Answer : We should keep in mind the following:-
(i) The nature of resources
(ii) The type of resources
(iii) The size of their reserves
Question .14. State some examples of exhaustible resources which are renewable?
Answer : Gold, Silver, Copper, Iron etc are exhaustible but can be reused.
Question .15. Give three examples of renewable resources?
Answer : Forests, Wildlife, Water, Solar, Wind and Tidal energy.
Question .16. State resources used by industries.
Answer : Forest, Agriculture, Wildlife, Water, Mineral and Power resources.
Question .17. How soil is formed?
Answer : Soil is formed by the number of process and the most important of them are:-
(i) Parent rock
(ii) Climate
(iii) Local topography
(iv) Long period of time
Question .18. State some adverse effect of increasing agricultural production?
Answer : To increase agricultural production, insecticides and fertilizers are used which causes pollution and effect plant and animal life.
Question .19. What are the effects of mining?
Answer : Unscientific practices of mining releases dust and smoke and land becomes unsuitable for agriculture.
Question .20. Which resources demand extra care and why? Give examples?
Answer : Non-renewable resources demand extra care because they can’t be renewed and their supply is limited.
Example:- Coal, Petroleum and other minerals.
Question .21. How soil is the basic resources of agriculture?
Answer : Plants and crops grow on soil and its growth depends upon the fertility of the soil.
Question .22. How soil erosion is caused?
Answer : Soil erosion is caused due to wind, rain and human activities.
Question .23. Mention the names of any two major soil types found in India?
Answer : (i) Alluvial soil (ii) Black or Regur soil.
Question .24. Write two salient features of Khadar soil?
Answer : Khadar is the new alluvium containing fine particles. It is renewed frequently and is more fertile.
Question .25. Name four broad types of soils found in India. Mention two characteristics of a soil which is most important and widespread?
Answer : Four broad types of soils found in India are:-
(i) Alluvial soil
(ii) Black/Regur soil
(iii) Red soil
(iii) Laterite soil
The most important and widespread soil is alluvial soil. It’s Characteristics are:-
(i) This soil is formed by the deposits of the river.
(ii) It covers about 43% of the total area.
(iii) The soil is very fertile.