Case Study Questions Class 10 Science Chapter 16 Sustainable Management of Natural Resources
CBSE Class 10 Case Study Questions Science Sustainable Management of Natural Resources. Important Case Study Questions for Class 10 Board Exam Students. Here we have arranged some Important Case Base Questions for students who are searching for Paragraph Based Questions Sustainable Management of Natural Resources.
At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks.
CBSE Case Based Questions Class 10 Science Biology Chapter 16
CASE STUDY : 1
The issues involved in the conservation and sustainable use of resources like forests, wild-life and water. These can meet our needs perpetually if we were to use them in a sustainable manner. Now we come to yet another important resource – fossil fuels, that is, coal and petroleum, which are important sources of energy for us. Since the industrial revolution, we have been using increasing amounts of energy to meet our basic needs and for the manufacture of a large number of goods upon which our lives depend. These energy needs have been largely met by the reserves of coal and petroleum.
i) How does coal and petroleum are formed?
Ans: When plants and animals died and they degrade and get buried deep inside the earth. Over millions of year ago they converted into coal and petroleum.
ii) What are the effects of using coal on our environment?
Ans: They contains sulphur, nitrogen, hydrogen, so when they are burnt in air they produce CO2, water, oxides of sulphur and nitrogen. It leads to global warming.
iii) When does carbon monoxide is formed?
Ans: when coal is burnt in insufficient air(insufficient oxygen) eg: closed room, so it form carbon monoxide instead of CO2.
iv) Which one is highly poisonous CO & CO2? Why?
Ans: Carbon monoxide is poisonous, if a person inhale CO in large amount, it cause to severe health issues, may cause death, severe respiratory problems.
v) Why we need to use these resource judiciously?
Ans: we need to use these resource judiciously because it is time consuming process i e it requires millions of years to get converted into coal and petroleum. Also, if resources get exhausted, our coming generations have to face problems and also we need to look for alternative source of energy.
CASE STUDY : 2
Watershed management emphasises scientific soil and water conservation in order to increase the biomass production. The aim is to develop primary resources of land and water, to produce secondary resources of plants and animals for use in a manner which will not cause ecological imbalance
i) Give one more importance of watershed management?
Ans: It also mitigates drought and floods and increase the life of dams and reservoirs.
ii) What is Rainwater harvesting?
Ans: It is a technique to collect and store rain water in the pits or ponds for future use.
iii) What are the traditional method of water harvesting?
Ans: Khadins tanks and nadis in Rajasthan, ahar and pynes in bihar, bandharas and tals in Maharashtra, kulhs in Himachal pradesh, ponds in the kandi belt of jammu region.
iv) What are the uses of ground water?
Ans: It does not evaporate, provides moisture for vegetation, protected from contamination by animal and human waste.
v) What are the techniques used by people to recharge groundwater?
Ans: digging small pits and lakes, by building small earthen dams, construction of dykes, sand and limestone reservoirs, roof top harvesting.
CASE STUDY : 3
We often hear or read about environmental problems. These are often global-level problems and we feel helpless to make any changes. There are international laws and regulations, and then there are our own national laws and acts for environmental protection. There are also national and international organisations working towards protecting our environment.
Awareness about the problems caused by unthinkingly exploiting our resources has been a fairly recent phenomenon in our society. And once this awareness rises, some action is usually taken. You must have heard about the Ganga Action Plan. This multi-crore project came about in 1985.
i) What was the objectives of Ganga action plan?
Ans: To improve the quality of Ganga water.
ii) what are the causes for the pollution of Ganga water?
Ans: Untreated sewage water is dumped into it, other human activities like bathing, washing, Unburnt corpses, Ashes. Also, industrial reason that day release chemical directly in the Ganga water which not only make it dirty or poor but also kills fishes in large section.
iii) what are the consequences if we use untreated Ganga water for daily purpose?
Ans: The water contains disease causing microorganism which affect your intestine & stomach. for example-coliform is a group of bacteria that cause diseases and intestine of human being.
iv) How can we save the environment and protect the resources from getting exhausted?
Ans: We can adopt triple R method that is reduce, recycle and reuse to protect the environment and conserve the resource from being exhausted.
v) What are the steps taken by an individual to protect the environment?
Ans: use of recycle paper, using of public vehicle rather than private vehicle or walking/ cycling, use of cotton or jute bag instead of plastic.
CASE STUDY : 4
Forests are ‘biodiversity hot spots’. One measure of the biodiversity of an area is the number of species found there. However, the range of different life forms (bacteria, fungi, ferns, flowering plants, nematodes, insects, birds, reptiles and so on) is also important. One of the main aims of conservation is to try and preserve the biodiversity we have inherited.
i) Who are stakeholders?
Ans: Those who live in the forest and are dependent on forest, the forest department of the government, the industrialist and the wildlife and nature enthusiast.
ii) what are the materials we get from forest?
Ans: Food, timber, medicines, woods etc. we get from forest. Not only these but also oxygen i.e 28% of oxygens are produced by forest all over the world.
iii) What are the effects on our environment forest to get disappear?
Ans: Soil erosion, ecological imbalance, lots of disaster, biodiversity will be in endangered and species may extinct etc.
iv) What are the methods to conserve the forest?
Ans: Use the resource judiciously, reforestation, reduce deforestation, government had launched some laws regarding the conservation of forest i.e Forest conservation act, 1980 to reduce deforestation, protect natural resources, improve the lifestyle of people who live in or near the forest.
v) What are the types of forest?
Ans: Evergreen/rainforest, deciduous forest, coniferous, mangrove, thorn, Mediterranean and taiga etc.
CASE STUDY : 5 Sustainable Management of Natural Resources
A study of rainfall patterns does not reveal the whole truth behind the water availability in various regions in India. Rains in India are largely due to the monsoons. This means that most of the rain falls in a few months of the year. Despite nature’s monsoon bounty, failure to sustain water availability underground has resulted largely from the loss of vegetation cover, diversion for high water demanding crops, and pollution from industrial effluents and urban wastes. Irrigation methods like dams, tanks and canals have been used in various parts of India since ancient times.
i) Which is the highest rainfall place in India?
Ans: Mawsynram -Shillong (Meghalaya)
ii) Which place suffers from scarcity of water in India?
Ans: The Western region of India that is Rajasthan, Gujarat and northern part of Maharashtra.
iii) Where does the bhakra Nangal dam situated? On which river it is located?
Ans: On the Sutlej river bhakra Nangal dam is located and is present in the state of Punjab and Himachal Pradesh border.
iv) Which is the highest dam in India? In which river is is located?
Ans: Tehri dam is the highest dam in India and is located in the state of Uttarakhand, on the river Bhagirathi.
v) What are the schemes launched by government protect and save water?
Ans: • Jal jeevan mission- har Ghar jal
- National wetland conservation programme(NWCP)
- watershed development project in shifting cultivation areas (WDPSCA).
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