Solving ICSE Class 10 Environmental Science Previous Year Question Papers ICSE Class 10 Environmental Science Question Paper 2022 Semester 1 is the best way to boost your preparation for the board exams.
ICSE Class 10 Environmental Science Question Paper 2022 Solved Semester 2
Maximum Marks: 40
Time Allowed: 1½ hour
General Instructions:
- Answers to this Paper must be written on the paper provided separately.
- You will not be allowed to write during the first 10 minutes.
- This time is to be spent in reading the question paper.
- The time given at the head of this Paper is the time allowed for writing the answers.
- Attempt all questions from Section A and any three questions from Section B.
- The marks intended for questions are given in brackets [ ].
[Section – A]
(Attempt all questions)
Question 1.
Choose the correct answers to the questions from the given options. (Do not copy the question. Write the correct answer only.) [10]
(i) According to the popular principles ofwaste segregation, a green coloured bin should contain :
(a) Biodegradable waste
(b) Non-biodegradable waste
(c) Hazardous waste
(d) Liquid waste
Answer:
(a) Biodegradable waste
(ii) Advantage of hydroelectricity is :
(a) People have to be relocated
(b) Construction cost of building the dam is high
(c) Running water has tremendous energy
(d) There is loss of biodiversity.
Answer:
(c) Running water has tremendous energy
(iii) The industrialized world has threatened our:
(a) Population
(b) Biodiversity
(c) Pollution
(d) Recreation activity
Answer:
(b) Biodiversity
(iv) The Montreal Protocol is an international treaty de-signed to protect the ………………… .
(a) Climate change
(b) Greenhouse Gas Emission
(c) To protect the biodiversity
(d) Ozone layer.
Answer:
(d) Ozone layer.
(v) Project Tiger was started in 1973 with the aim to :
(a) Hunt tigers all over the country
(b) Hunt tigers only in specific regions
(c) To protect the tigers from hunting
(d) To only take a count of the tigers.
Answer:
(c) To protect the tigers from hunting
(vi) Application of Remote Sensing Satellite data:
(a) Images are analyzed in the laboratory
(b) Environmental damage
(c) Cheap and rapid method of constructing base maps
(d) Reduces the amount of field work.
Answer:
(b) Environmental damage
(vii) Energy obtained from organic matter:
(a) Solar energy
(b) Geothermal energy
(c) Hydrogen gas
(d) Biomass
Answer:
(d) Biomass
(viii) The process of burning municipal solid wastes under suitable temperature and conditions in a specific furnace is called
(a) Landfill
(b) Incineration
(c) Recycling
(d) Vermicomposting
Answer:
(b) Incineration
(ix) A company becomes a MNC when :
(a) It only exports goods.
(b) It only hires local staff.
(c) The business is large with huge financial assets.
(d) It is in a position to over use resources.
Answer:
(c) The business is large with huge financial assets.
(x) A pandemic is :
(a) A widespread endemic disease
(b) A contagious disease
(c) A communicable disease
(d) A vector borne disease.
Answer:
(a) A widespread endemic disease
[Section – B|
(Answer any three questions from this Section.)
Question 2.
(i) Discuss any two advantages of in-situ conservation. [2]
Answer:
(a) It conserves the species and its habitat.
(b) Useful in conserving large populations of a species.
(c) It is a cost-efficient conservation method.
(ii) State any two harms caused by nuclear disasters. [2]
Answer:
- Nuclear disasters can cause severe health problems due to nuclear radiation.
- Nuclear disasters can adversely affect the vegetation and eco-system of the environment.
(iii) Give three steps how one can decompose organic waste at home. [3]
Answer:
(a) Segregate your household waste into diy and wet in your home. Fruit peels, teabags and leftovers of food are wet waste, while paper, plastic and packaging are dry waste.
(b) Put the wet waste into the first compost pot. Add dried leaves of the same quantity as the waste.
(c) Add semi-composted material or cow dung to start off the decomposition process.
(d) Leave the pot open for 30-45 days for the composting to happen. Move this semi-composted matter into a larger container or bin.
(e) After two months, the waste will turn into rich compost that can be used or sold as manure.
(iv) List any three characteristics of multinational company at global level. [3]
Answer:
(a) MNCs have large base of assets and enjoy high turnover.
(b) They have large network of branches globally.
(c) They rely on latest technology.
Question 3.
(i) Define sustainable development. [2]
Answer:
Sustainable development can be defined as an approach to the economic development of a country without compromising with the quality of the environment for future generations.
(ii) State any two causes for loss of wildlife habitat. [2]
Answer:
(a) Damage to natural resources.
(b) Decreasing space for wildlife due to urbanisation.
(iii) State any three advantages of using gasohol. [3]
Answer:
(a) It can be used in standard gasoline engines without any modifications.
(b) It also has the potential to reduce carbon monoxide and hydrocarbon emissions.
(c) Its use reduces the pressure on consumption of fossil fuels.
(iv) Mention any three important tips for the management of waste. [3]
Answer:
(a) Make use of reusable grocery bags and containers.
(b) Make use of online resources. Avoid wastage of papers.
(c) Make use of the things which could be recycled.
(d) Dispose off waste like metals, papers, newspapers wisely.
Question 4.
(i) State any two reasons for growth of MNCs. [2]
Answer:
(a) MNCs have huge financial resources. They can expand rapidly with available financial resources.
(b) They have easy access to foreign capital markets.
(c) They use latest technology in production and services.
(ii) What is the aim of the Kyoto Protocol ? [2]
Answer:
The Kyoto Protocol is an international treaty adopted in 1997 that aimed to reduce the emission of gases that contribute to global warming.
(iii) What are vulnerable species ? Give two examples. [3]
Answer:
A vulnerable species is one in which the species is susceptible to endangerment. The species is likely to become endangered when the population of that species declines. Examples: Barasingha, Blackbuck, Nilgiri Langur, Yak.
(iv) Name any three effective methods of conserving energy [3]
Answer:
(a) Turn off your electronic devices when not in use.
(b) Use energy-efficient light bulbs like LED bulbs and tube lights.
(c) Use pressure cooker for cooking of food. Cook using the right-sized burner.
(d) Get serviced your vehicle at regular intervals.
Question 5.
(i) Give any two precautions that we must take while transporting waste from hospitals. [2]
Answer:
(a) Always carry/transport the waste in closed containers from the source of generation to final disposal.
(b) Use dedicated waste collection bins for transporting waste.
(ii) State any two works of the Global Environmental Facility. [2]
Answer:
Works of Global Environmental Facility are: Mitigation and adaptation of climate change, sustainable forest management.
(iii) Mention any three man-made causes that lead to the loss of biodiversity. [3]
Answer:
Biodiversity loss is caused by these factors: habitat loss, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming. In each case, human beings and their activities are playing direct roles.
(iv) List any three principles of sustainable development. [3]
Answer:
(a) Conservation of the ecosystem or the environment.
(b) Conservation of biodiversity of the planet.
(c) Sustainable development of the society.
(d) Population control and management.
Question 6.
(i) How is wind energy useful to farmers in rural areas ? [2]
Answer:
(a) Farmers can use wind pump for irrigation.
(b) Power generated by wind turbines is the cheapest.
(c) Each turbine uses less than half an acre, therefore, farmers can plant crops and graze livestock right to the turbine’s base.
(ii) Why is the practice of recycle and reuse important in modem times ? [2]
Answer:
Reuse refers to using items more than once. It reduces the burden on resources for creating a new item. Recycling is the method of turning used and waste materials into new products. Recycling is one of the most effective ways that we can do to preserve our planet. This process uses less energy and resources than making a new one. A lot of our household waste can be broken down and reprocessed to make new things.
(iii) Mention any three ways how multinational companies cause environmental degradation. [3]
Answer:
MNCs cause environmental degradation due to the following reasons:
(a) transferring outdated technology and using latest technology rapidly
(b) disregarding local laws
(c) extracting host countries resources
(d) following poor local environmental practice
(iv) List three advantages of captive breeding with reference to wildlife. [3]
Answer:
(a) Captive breeding helps to protect endangered species of animals and also have breeding programs to enrich the populations of animal species.
(b) It helps introduce a healthy generation of the species to the world.
(c) Captive animals are used for research institutions and are also placed in zoos as well aquariums.