Punjab State Board PSEB 10th Class Science Book Solutions Chapter 16 Management of Natural Resources Textbook Exercise Questions and Answers.
PSEB Solutions for Class 10 Science Chapter 16 Management of Natural Resources
PSEB 10th Class Science Guide Management of Natural Resources Textbook Questions and Answers
Question 1.
What changes would you suggest in your home in order to be environment friendly?
Answer:
We should use the formula of three R’s to save the environment i.e. Reduce, Recycle and Reuse.
- Reduce: Use less, save water and electricity by stopping the wastage. Do not waste food.
- Recycle: Segregate the wastes so that material which can be recycled should be dumped in place for recycling.
- Reuse: Reuse certain articles e.g. reverse the used envelope and reuse it.
Question 2.
Can you suggest some changes in your school which could make it environment friendly?
Answer:
We should use the formula of three R’s to save the environment i.e. Reduce, Recycle and Reuse.
- Reduce: Use less, save water and electricity by stopping the wastage. Do not waste food.
- Recycle: Segregate the wastes so that material which can be recycled should be dumped in place for recycling.
- Reuse: Reuse certain articles e.g. reverse the used envelope and reuse it.
Question 3.
We have read in this chapter that there are four main stakeholders when it comes to forests and wild-life. Which among these should have the authority to decide the management of forest produce? Why do you think so?
Answer:
By active and willing participation of local people, the sal forests of Arabari under went a remarkable recovery as 25 per cent of final harvest was provided to people. They were allowed fuel wood and fodder collection at very nominal rates. This project helped in saving the forests. Hence to have sustainable development there should be equal participation of local community.
Question 4.
How can you as an individual contribute or make a difference to the management of
(a) forest and wild-life
Answer:
- Selective use and reuse of resources.
- Discourage the killing of wild animals.
- Educate the people about the resources provided by forests.
(b) water resources and
Answer:
Water harvesting at one’s home level so as to restore water at subsoil level.
(c) Coal and Petroleum?
Answer:
Alternative sources of energy such as use of solar energy instead of coal and petroleum.
Question 5.
What can you, as an individual, do to reduce your consumption of the various natural resources?
Answer:
(a) forest and wild-life
- Selective use and reuse of resources.
- Discourage the killing of wild animals.
- Educate the people about the resources provided by forests.
(b) water resources
Water harvesting at one’s home level so as to restore water at subsoil level.
(c) Coal and Petroleum
Alternative sources of energy such as use of solar energy instead of coal and petroleum.
Question 6.
List five things you have done over the last one week to :
(i) conserve our natural resources
Answer:
Conserve our natural resources
- Saved electricity by switching off electricity of unnecessary light and fans.
- Used disposable paper cups and plates during my journey in the train.
- Reused the envelopes by turning inside out.
- Planted five plants in my school.
- Educated the people in my locality regarding conservation of natural resources for sustainable development.
(ii) increase the pressure on our natural resources.
Answer:
Increase the pressure on natural resources
- Wasted food.
- Used scooter to consume petrol.
- Added to air pollution and sound pollution.
- Used plastic bags.
- Used D.D.T. in my home.
Question 7.
On the basis of the issues raised in this chapter, what changes would you incorporate in your life-style in a move towards a sustainable use of our resources?
Answer:
forest and wild-life
- Selective use and reuse of resources.
- Discourage the killing of wild animals.
- Educate the people about the resources provided by forests.
(b) water resources
Water harvesting at one’s home level so as to restore water at subsoil level.
(c) Coal and Petroleum
Alternative sources of energy such as use of solar energy instead of coal and petroleum.
Conserve our natural resources
- Saved electricity by switching off electricity of unnecessary light and fans.
- Used disposable paper cups and plates during my journey in the train.
- Reused the envelopes by turning inside out.
- Planted five plants in my school.
- Educated the people in my locality regarding conservation of natural resources for sustainable development.
Increase the pressure on natural resources
- Wasted food.
- Used scooter to consume petrol.
- Added to air pollution and sound pollution.
- Used plastic bags.
- Used D.D.T. in my home.
Science Guide for Class 10 PSEB Management of Natural Resources InText Questions and Answers
Question 1.
What changes can you make in your habits to become more environment friendly?
Answer:
Changes in habits to become environment friendly
- Check your careless habit of wasting. Save water by repairing leaking taps.
- Switch off unnecessary lights and fans.
- Do not waste food.
- Say ‘No’ to plastic bags, disposable plastic cups and other forms of plastic crockery.
- Reuse the things again and again. Instead of throwing away envelopes, you can reverse it and use it again.
Question 2.
What would be the advantages of exploring resources with short term aims?
Answer:
The advantages of exploiting resources with short term aims are as follows :
- We will be able to fulfil the requirement of mass population.
- We will be able to get industrial growth and hence economic development is linked to environmental conservation.
Question 3.
How would these advantages differ from the advantages of using a long term perspective in managing our resources?
Answer:
The demand for all resources is increasing due to increasing human population. The resources are limited.
- It should ensure selective careful use so as to maintain.
- There should be equal distribution of resources to all i.e. rich and poor.
- There should be safe disposal of wastes.
Question 4.
Why do you think there should be equitable distribution of resources? What forces would be working against an equitable distribution of our resources?
Answer:
Management of resources should ensure equitable distribution of resources to all and not to just a handful of rich and powerful people, benefit from the development of these resources.
Question 5.
Why should we conserve forest and wildlife?
Answer:
Forests and wild life are resources of great value.
- Forests help in protection of land.
- Forests help in retaining sub-soil water.
- Forests check floods.
- Forest and wild life maintain ecosystem.
- Wildlife is helpful in exploiting various scientific researches.
- They should be maintained for our economic and social growth and to meet our and of future generation’s material aspiration.
Question 6.
Suggest some approaches towards conservation of forests.
Answer:
Conservation of forests
- Participation of local people indeed lead to efficient management of forest as exemplified by strategy developed in Arabari Forest range of Midnapur district.
- Replantation of trees.
- Selective use of forests.
- Scientific research, monitoring and education plays vital role in conservation.
- Overgrazing should be checked.
- Protection of wildlife and banning the hunting of wild animals.
- Use of modern technique of forestry.
- Make suitable outlet channels to carry out flood water.
Question 7.
Find out about the traditional system of water harvesting/management of your region.
Answer:
Traditional Methods in water harvesting/management
- Diversion of water flowing in streams into man-made channels to cater to the demand of villagers.
- Collection of water in ponds.
- Construction of dams.
Question 8.
Compare the above system with the probable system in hilly mountainous areas or plains or plateau regions.
Answer:
Water harvesting systems are highly local specific and benefits are also localized. The present-day systems include mega projects such as dams.
Question 9.
Find out the source of water in your region/locality. Is water from this source available to all people living in that area?
Answer:
Sources of water are different in different areas. However, these sources are available to all people.