NCERT Class 10 Science Chapter 16 Sustainable Management of Natural Resources Extra Questions and Answers
Class 10 Science Chapter 16 Extra Questions and Answers – Sustainable Management of Natural Resources. Here in this Page Class X Students can Learn Extra Questions & Answer 16th Chapter Science (Biology) fully Inside.
We Provided Here Sustainable Management of Natural Resources Science Chapter 16 Long Answer Type Question, Very Short Type Questions (VSA) / Multiple Type Questions, Short Type Questions (SA).
Class 10 Science Chapter 16 Extra Question with Answer – Sustainable Management of Natural Resources
Science Chapter 16 Sustainable Management of Natural Resources Class 10 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers.
Q.1. Multiple Choice Questions
1) Forests are …………………………..hotspots.
a.) Chemodiversity
b.) Biodiversity
c.) Geodiversity
d.) None of the above.
Ans. b. Biodiversity
Hint: forests are rich in variety of flora and fauna hence are biodiversity hotspots.
2.) Ganga flows from……………………..states.
a.) Uttar Pradesh
b.) Bihar
c.) West Bengal
d.) All a,b,c
Ans. All a,b,c
Hint: Ganga flows from all of the above states.
3.) Measurement for the biodiversity richness for an area is the ……………………found there.
a.) number of phyla
b.) number of genera
c.) number of species
d.) number of sub- species
ans. c. number of species
hint: by counting the number of species, we can measure the biodiversity richness for that area.
4.) Ganga Action plan was initiated in……………………………..
a.) 1982
b.) 1983
c.) 1984
d.) 1985
Ans. d. 1985
Hint: Ganga Action Plan was initiated in 1985.
5.) Some areas of Himachal Pradesh had evolved a local system of water canal irrigation called as ………….
a.) Kulhs
b.) Bandharas
c.) Katta
d.) Nalas
Ans. a. Kulhs
Hint: Kulhs are some areas of Himachal Pradesh which had evolved a local system of water canal irrigation.
6.) Water harvesting techniques are highly …………………….specific.
a.) Locale
b.) Global
c.) Both a and b
d.) None of the above
Ans. water harvesting techniques are specific for a particular region and hence they are local specific.
7.) ……………………………………….is a greenhouse gas.
a.) Carbon
b.) carbon dioxide
c.) carbon tetrachloride
d.) carbon and oxygen.
Ans. b. Carbon dioxide
Hint: Carbon dioxide is a greenhouse gas.
8.) Coal and petroleum are consisting of mainly…………………………compounds?
a.) Nitrogen
b.) Hydrogen
c.) Oxygen
d.) Carbon
Ans. d. Carbon
Hint: Carbon is chief element in coal and petroleum products.
9.) ……………………………………….is not traditional water harvesting structure?
a.) Bundhis
b.) Kattas
c.) Bandharas
d.) Borewells
Ans. d.brewells
Hint: Options a,b and c are the traditional water harvesting structures but borewell is not.
Q.2. Very short answer type questions:
1.) When Ganga Action plan initiated?
Ans. Ganga Action Plan was initiated in 1985.
2.) What is the aim of biodiversity conservation?
Ans. the aim of biodiversity conservation is to try and preserve the biodiversity that have inherited from generations.
3.) Where do Bishnoi community live?
Ans. Bishnois community live in western Rajasthan on the border of the Thar desert.
4.) What types of irrigation methods are used?
Ans. Dams, tanks and canals are the different methods of irrigation.
5.) How coal and petroleum were formed?
Ans. Coal and petroleum were formed from the degradation of bio-mass over a millions of years.
6.) Name the main greenhouse gas?
Ans. Carbon dioxide is a main greenhouse gas.
7.) What are the products we gain after burning the fossil fuels?
Ans. Carbon dioxide, water, oxides of nitrogen and oxides of sulphur along with the release of energy are the products of burning of fossil fuels.
8.) How the energy needed for industries is served?
Ans. the energy need for industries are served by the reserves of coal and petroleum.
9.) What do you think is the main purpose of the water harvesting structures?
Ans. The main purpose of water harvesting structures is to recharge the level of ground water.
10.) Name the traditional water harvesting structures used in Rajasthan?
Ans. Khadins, tanks and nadis in are the traditional water harvesting structures used in Rajasthan.
Q.3. Short answer type questions:
1.) Write down the uses of bamboos?
Ans. Bamboo is an important forest produce which we get from forest for free. It is used to make variety of products such as slats for huts, and baskets for collecting and storing various food materials.
2.) What was the reason for initiation of Ganga Action plan?
Ans. The quality of the water in the Ganga was very poor hence to restore this water quality, Ganga Action plan was initiated.
3.) Whose presence in drinking water indicates Water contamination?
Ans. Coliform is a group of bacteria which is found in human intestines. Therefore, the presence of such coliform bacteria in drinking water indicates water is contaminated by the disease-causing microorganisms.
4.) Write a note on sustainable development?
Ans. sustainable development is the way of development that encourages all forms of growth that meet the current basic needs of human, while preserving the available resources for the needs of the future generations.
5.) Why we should use fossil fuels wisely?
Ans. fossil fuels are formed thousands of years ago due to carbonization of dead plants and animals. It takes lots of time for the formation of fossil fuels. Also, their consumption releases mixture of gases along with carbon dioxide which is chief greenhouse gas. Hence, to protect our mother earth from air pollution, we should use fossil fuels wisely.
6.) Jatin wants to kill all wild animals and forest tress present near his town. Will you support his thinking?
Ans. forest is a valuable resource for us. It provides us valuable forest produce and it is also the habitat for various plants and animals. If we kill all wild animals and cut down all the tress, then it will imbalance various environmental cycles and our ecosystem and the beauty of landscape is also get lost. Hence, i will not support his thinking.
7.) What is the advantage of ground water?
Ans. Water present in the ground does not evaporate into the atmosphere, it recharges wells and
Also provides moisture for growing vegetation over a wide area for a longer period of time.
The groundwater is also relatively protected from contamination from various types of wastes.
Q.4.) Long answer type questions:
1.) Discuss the traditional structures of water harvesting bodies in India?
Ans. People use their traditional knowledge for conservation of water resource as much as possible. Khadins, tanks and nadis are reported as the traditional structure used for water harvesting in Rajasthan, bandharas and tals are used to conserve water in the Maharashtra state, bundhis are within the states of both Madhya Pradesh and Uttar Pradesh, etc. all are the traditional structures for water harvesting.
2.) What do the term: refuse conveys us?
Ans. Refuse means to say No to things when you don’t need them anymore. people may offer you the things that you don’t have its need. Then refuse means use you should not accept them and leave it to those who really needs them. We should refuse to buy such products which can harm us and our environment. We should also say No to the single-use plastic carry bags as they do not degrade easily in the environment.
3.) What products do we get from forest? What are its economic uses?
Ans. We get various forest produce from forest for free of cost. Most of them includes bamboo, timber, fruits and medicines having commercial values. Bamboo is an important forest produce which we get from forest for free. It is used to make variety of products such as slats for huts, and baskets for collecting and storing various food materials. Timber is used to make furniture and also in construction works. Various types fruits are also obtained from forest. Medicinal plants provide us medicines to cure diseases. In this way, we get lots of valuable things from forest.
4.) Why we say that forest are biodiversity hotspots?
Ans. Biodiversity denotes how rich is the particular area with respect to the available flora and fauna. It also state us about the different number of species living in that particular area. Forest meets up this criteria as number of species of bacteria, plants, animals, micro- organisms inhabits that particular area which consists of variety among them. Hence, we can say that forest are biodiversity hotspots.
5.) Why do we need to harvest water?
Ans. Water is very valuable natural resource and we cannot imagine our life without it. Our population is growing up day by day which imposes an increasing demand of water for drinking and irrigation purposes. We have limited amount of fresh water sources. Hence, to meet our daily requirement of water with that of available water in the ground, we need to adopt various water harvesting methods to harvest water.
6.) Write a note on Namami Gange Programme?
Ans. Namami Gange Programme was an Integrated Conservation Mission which was approved by the Union Government of India as a Flagship Programme in the year 2014. This programme was launched to accomplish the two major objectives such as-
Effective abatement of water pollution and rejuvenation of holy River Ganga.
7.) What is the use of fuel?
Ans. fuel is the source of energy to do all the mechanical works in the industry. Fuel is most commonly used in the combustion engines in machines for transportation and recent research in this field concentrates on ensuring complete combustion of the fuel in these combustion engines in order to the increase efficiency of the engine and to reduce air pollution.