Class 10 Geography Resources and Development Solutions: Question answers of the textbook exercises are given here. Video tutorials of ‘Resources and Development’ are also given here. CBSE class 10 students should also prepare by writing their own answers.
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Resources and Development Videos
Resources and Development Book Exercise Solutions
A. Multiple Choice Questions:
Q. 1. Which one of the following type of resource is iron ore?
(a) Renewable (b) Biotic
(c) Flow (d) Non-renewable
Ans. (d) Non-renewable
Q. 2. Under which of the following type of resource can tidal energy be put?
(a) Replenishable (b) Human-made
(c) Abiotic (d) Non-recyclable
Ans. (a) Replenishable
Q. 3. Which one of the following is the main cause of land degradation in Punjab?
(a) Intensive cultivation (b) Deforestation
(c) Over irrigation (d) Over grazing
Ans. (c) Over irrigation
Q. 4. In which one of the following states is terrace cultivation practised?
(b) Plains of Uttar Pradesh
(c) Haryana (d) Uttarakhand
Ans. (d) Uttarakhand
Q. 5. In which of the following states, black soil is predominantly found?
(a) Jammu and Kashmir (b) Maharashtra
(c) Rajasthan (d) Jharkhand
Ans. (b) Maharashtra
B. Answer the following questions in 30 words:
Q. 1. Name three states having black soil and the crop which is mainly grown in it.
Ans. The three states having black soil are the plateaus of Maharashtra, Madhya Pradesh and Chhattisgarh and the crop which is mainly grown in this is cotton.
Q. 2. What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil?
Ans. Alluvial Soil is found in the river deltas of the eastern coast. The three main features of this type of soil are:
(a) The alluvial soil as a whole is very fertile. It contains adequate proportion of potash, phosphoric acid and lime, which is ideal for sugarcane, paddy, wheat and growth of other cereals and pulse crops.
(b) Regions of alluvial soil are intensively cultivated and are densely populated. It has higher water retention capacity.
(c) Soil in drier areas is more alkaline and can be productive after proper treatment and irrigation.
Q. 3. What steps can be taken to control soil erosion in hilly areas?
Ans. The steps that can be taken to control soil erosion in hilly areas are as follows:
(a) Steps can be cut out on the slopes by making terraces as it restricts erosion.
(b) Large fields can be divided into strips. Strips of grass are left to grow between the crops as this breaks the force of wind. Planting lines of trees to create shelter also works in similar way.
Q. 4. What are the biotic and abiotic resources? Give some examples.
Biotic resources: resources are obtained from biosphere and have life such as human beings, flora and fauna, fisheries, livestock etc. In short, these resources are obtained from living organisms in our environment.
Example – trees, animals, insects, etc.
Abiotic resources: Things composed of non-living things present in our environment are termed as abiotic resources.
Example: earth, water, metals, etc
C. Answer the following questions in about 120 words:
Q. 1. Explain land use pattern in India and why has the land forest not increased much since 1960-1961.
Ans. About 45 per cent of land is used as net sown areas, i.e., farming. About 22 per cent of land is under forest and the rest of the land is used for various purposes; such as housing, recreation and industrial activities.
The pattern of net sown areas varies greatly from one state to another. It is over 80 percent of the total area in Punjab and Haryana and less than 10 percent in Arunachal Pradesh, Mizoram, Manipur and Andaman and Nicobar Islands.
Forest area in the country has not increased much as desired, 33 percent of geographical area was outlined in National Forest Policy (1952). The main reason that forest land has not increased since 1960-61 is that there is an increase in population and subsequent increase in demand for resources.
Q. 2. How have technical and economic development led to more consumption of resources?
Ans. This history of colonisation reveals that rich resources in colonies were the main attractions for the foreign invaders. It was primarily the higher level of technological development of the colonising countries that helped them to exploit resources of other regions and establish their supremacy. Resources are vital for any developmental activity. But irrational consumption and over utilization of resources may lead to socio economic and environmental problems and more consumption of resources.
Answer in points:
(i) Technological development has led to more industries and therefore use of natural resources has increased.
(ii) As means of transportation and communication are developing fast, they help in the mobility of the resources.
(iii) Due to technological advancement, techniques of mining and quarrying are also improving, leading to safer mining and more resources and more economic development.
(iv) Green Revolution led to the introduction of latest mechanical devices, fertilisers, HYV seeds, etc., leading to more and more production and consumption of resources.