Class 10 Science Chapter 16 Management of Natural Resources

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Class 10 Science Chapter 16 Management of Natural Resources The answer to each chapter is provided in the list so that you can easily browse throughout different chapters NCERT Class 10 Science Chapter 16 Management of Natural Resources and select need one.

Class 10 Science Chapter 16 Management of Natural Resources

Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Assam Board Class 10 Science Chapter 16 Management of Natural Resources Solutions for All Subjects, You can practice these here…

Multiple choice questions

Q.1. The Bishnoi community of Rajasthan is associated with the conservation of

( a ) Coal and petroleum.

( b ) Forests and wildlife.

( c ) Water resources.

( d ) Abiotic environment. 

Ans :- ( b ) Forests and wildlife.

Q.2. The chipko Andolan is associated with 

( a ) Tigers.

( b ) Turtles.

( c ) Trees.

( d ) Tomatoes.

Ans :- ( c ) Trees.

Q.3. Amrita Devi Bishnoi was associated with 

( a ) Preventing the custom of child marriage in Rajasthan. 

( b ) Campaign to save the girl child. 

( c ) Conservation of cultural heritage of Rajasthan. 

( d ) Conservation of forest and wildlife. 

Ans 🙁 d ) Conservation of forest and wildlife. 

Q.4. One of the following is not a direct stakeholder in the management (or conservation) of forests. This is 

( a ) The people who have paper mills. 

( b ) The people who run the forest department. 

( c ) The people who campaign for the conservation of forest. 

( d ) The people who live in urban areas. 

Ans :- ( d ) The people who live in urban areas. 

Q.5. The river water is said to be polluted with acidic wastes if the pH of river water is : 

( a ) Zero.

( b ) Above 7

( c ) Below 7 

( d ) Exactly 7 

Ans :- ( c ) Below 7 

Q.6. The major program started to replenish the damaged forests is called : 

( a ) Horticulture.

( b ) Tissue culture.

( c ) Agriculture. 

( d ) Silviculture.

Ans :- ( d ) Silviculture.

Q.7. With which tree Amrita Devi Bishnoi is associated? 

( a ) Khajoor.

( b ) Khejroli.

( c ) Khejri.

( d ) Keekar.

Ans :- ( c ) Khejri.

Q.8. One of the following does not contribute in producing acid rain. This one is : 

( a ) Sulphur dioxide.

( b ) Carbon dioxide.

( c ) Nitrogen oxides.

( d ) Carbon monoxide.

Ans :- ( d ) Carbon monoxide.

Q.9. The poisonous gas which reduces the oxygen – carrying capacity of blood to a large extent is :- 

( a ) SO₂

( b ) NO 

( c ) Co 

( d ) CO₂

Ans :- ( c ) Co.

Q.10. Which of the following is not an ancient water harvesting structure? 

( a ) kattas. 

( b ) Sargam.

( c ) Kulhs.

( d ) Surangams.

Ans :- ( b ) Sargam.

Q.11. Snakes are killed in large numbers because : 

( a ) They are very poisonous. 

( b ) They kill rates.

( c ) Their skin is expensive. 

( d ) They damage the crops.

Ans :- ( c ) Their skin is expensive. 

Q.12. Which of the following is not a fossil fuel? 

( a ) LPG.

( b ) Natural gas.

( c ) Biogas.

( d ) CNG.

Ans :- ( c ) Biogas.

Q.13. Which of the following is not a natural resource? 

( a ) Soil.

( b ) Water.

( c ) Electricity.

( d ) Natural gas. 

Ans :- ( c ) Electricity.

Q.14. The most rapidly dwindling natural resource in the world is : 

( a ) Water.

( b ) Soil.

( c ) Sunlight. 

( d ) Forests.

Ans :- ( d ) Forests.

Q.15. Which of the following is not a natural resource? 

( a ) Snake.

( b ) Wind.

( c ) Wooden house.

( d ) Mango tree. 

Ans :- ( c ) Wooden house.

Q.16. The three R’s which can help us to conserve natural resources for long term use are : 

( a ) Recycle, regenerate, reuse. 

( b ) Reduce, regenerate, reuse.

( c ) Reduce, reuse, redistribute.

( d ) Reduce, recycle, reuse.

Ans :- ( d ) Reduce, recycle, reuse.

Q.17. The main reason for the abundant coliform bacteria in the water of river Ganga is : 

( a ) Immersion of ashes of the dead into the river. 

( b ) Washing the clothes on the banks of river. 

( c ) Discharge of industrial waste into river water. 

( d ) Disposal of urbunt corpses in to river water. 

Ans :- ( d ) Disposal of urbunt corpses in to river water. 

Q.18. The Pᴴ of a sample of water collected from a river is found to be in the range of 3.5 to 4.5. The most likely reason for this is the water being discharged into the river from a : 

( a ) Soap and detergent manufacturing factory. 

( b ) Car battery manufacturing factory. 

( c ) Alcohol manufacturing factory. 

( d ) Plastic cups manufacturing factory. 

Ans :- ( b ) Car battery manufacturing factory. 

Q.19. Which of the following statement is in correct : 

( a ) Economic development is linked to environmental Conservation.

( b ) Sustainable development meets the current basic human Needs and also preserves resources for future generations.

( c ) Sustainable development does not take into consideration the viewpoints of all stakeholders. 

( d ) Sustainable development is a long planned and persistent development. 

Ans :- ( c ) Sustainable development does not take into consideration the viewpoints of all stakeholders. 

Q.20. Arabari forest of Bengal is dominated by : 

( a ) Teak.

( b ) Sal.

( c ) Bamboo.

( d ) Mangroove.

Ans :- ( b ) Sal.

Q.21. Ground water will not be depleted due to 

( a ) Process of afforestation.

( b ) Establishing thermal power plants.

( c ) Process of deforestation.

( d ) Cultivation of high yielding varieties of 

Ans :- ( a ) Process of afforestation.

Q.22. Ahars, Kattas, Bhundhis and Khadims are the modes of 

( a ) Grain storage.

( b ) Soil conservation.

( c ) Water harvesting.

( d ) Cold Storage.

Ans :- ( c ) Water harvesting.

Q.23. Which of the following combination of terms has no fossil fuel? 

( a ) Wind, ocean, coke. 

( b ) Kerosene, tide, wind.

( c ) Wood, wind, sun.

( d ) Petrol, wood, sun.

Ans :- ( c ) Wood, wind, sun.

Q.24. The use of one of the following is eco-friendly. This one is. 

( a ) cars for transportation.

( b ) Polybags for shopping.

( c ) Windmills for generating power. 

( d ) Dyes for colouring clothes. 

Ans :- ( c ) Windmills for generating power. 

Q.25. Khadims are used in Rajasthan to : 

( a ) Hold water for irrigation.

( b ) Recharge ground water.

( c ) Promote soil erosion.

( d ) Trap wild animals.

Ans :- ( b ) Recharge ground water.

Higher order thinking questions

Q.1. In a village, farmers started cultivating crops all around a lake which was always filled with water. They added lot of materials W to the soil in their fields to increase the yield of crops. Soon they found that the whole surface of water in the lake was covered with a green layer made up of tiny organisms X. After some time, the first present in the lake started dying in a large number because they could not get sufficient Y due to a process Z which had occurred in lake water and drained out all the Y present in the water of lake. 

( a ) What do you think materials W are? 

( b ) What is ( i ) X   ( ii )  Y

( c ) What is the process Z known as? 

( d ) What happens during the process Z which uses up all the Y present in lake water? 

( e ) What does this example tell us about the use of materials like W ? 

Ans :- ( a ) Fertilisers.

( b )  ( i ) Algal.

        ( i ) Oxygen. 

( c ) Eutrophication.

( d ) When algae die, bacteria use all the oxygen dissolved in water.

( e ) Excessive use of fertilisers in fields is not good for the environment. 

Q.2. There were lot of organisms A in the crop fields in an area. These organisms used to feed on organisms B also present in the crop fields but which damage the standing crops. One day some people arrived in the fields and killed all the organisms A so that they could remove their C for making fancy items which were in great demand. Due to large scale killing of A, the population of B increased too much damaging all the crops in the area and causing a famine-like situation. Apart from A, there is another organism D which can also kill and eat B. Name A, B, C and D. 

Ans :- A is snakes.

          B is rats.

          C is skin.

          D is cat. 

Q.3. There are two important fuels A and B both of which are extracted from deep inside the earth. Fuel A is a 3. thick, dark, foul smelling liquid where as fuel B is a black solid. Combustion of both the fuels produces products, C, D, E and F. The water only slightly acidic but it is mainly responsible for causing global warming. The product D is neither acidic nor basic. It is harmless and does not affect the ct C makes the rain environment in any way. Both E and F attack breathing system of humans and are mainly responsible for causing acid rain. In addition to combustion of fuels A and B, the product F is also formed when lightning occurs in the sky. 

( a ) What are ( i ) Fuel A 

                       ( ii ) Fuel B ? 

( b ) Name ( i ) C 

                  ( ii ) D 

                  ( iii ) E 

                  ( iv ) F 

( c ) What is the process of formation of F during lightning known as ? 

( d ) Which fuel is supposed to be exhausted sooner : A or B? 

( e ) Which fuel is mostly used for generating electricity at thermal power plants? 

Ans :- ( a ) ( i ) Petroleum. 

                  ( ii ) Coal.

           ( b ) ( i ) Carbon dioxide. 

                  ( ii ) Water.

                  ( iii ) Sulphur dioxide.

                  ( iv ) Nitrogen dioxide.

           ( c ) Natural fixation of nitrogen. 

           ( d ) A (petroleum) 

           ( e ) B (coal) 

Q.4. A man bought a device X which could cook pulses, vegetables and rice without using any fuel like wood, coal, kerosene or LPG etc. The device did not work at night. It also took a lot of time for cooking. 

( a ) Name the device X. 

( b ) What is the source of energy which cooks food in this device? 

( c ) What is the name of the process which traps energy in this device? 

( d ) State one advantage (other than saving on fuel) of using such a device for cooking food. 

Ans :- ( a ) Solar cooker.

          ( b ) Sun.

          ( c ) Greenhouse effect.

          ( d ) It does not cause air pollution. 

Short Answer Type Questions

Q.1. Name some forests products. 

Ans :- Wood for fuel, paper, pulp, newsprint, board, furniture, packing, matches, sports goods, minor forest products like canes, gums, resins, dyes, tannins, lac, fibres, medicines etc. 

Q.2. Write a short note on Chipko Andolan. 

Ans :- The chipko andolan originated from an incident in a remote village called ‘Reni’ in Garhwal, high up n the Himalayas in the early 1979. A logging contractor Rad been allowed to cut down trees in a forest close to a village. The people of the village did not want this forest to be cut down because it would have spoiled their healthy environment. 

One day, when the men folk of the village were out for work, the contractor’s workers came in the forest to cut down the trees. In the absence of men, the women of the village reached the forest quickly and clasped the tree trunks with their arms, preventing the workers from cutting down the trees. The forest trees were thus sved. The chipko movement quickly spread across all the communities and helped in the conservation of forests. 

Q.3. What is Ganga Action plan? 

Ans :- River Ganga has become polluted due to the sewage, industrial waste etc, flowing into the river untreated. People also dump human corpses and other material into the river which increases the pollution. Ganga action plan came about in 1985. It is a project to clean the Ganga river. It aims to install sewage treatment plants for 27 cities at the bank of the river to handle millions of litres of sewage daily before its discharge into the river.

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