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CBSE Questions for Class 12 Commerce Economics Environment And Sustainable Development Quiz 3 - MCQExams.com
CBSE
Class 12 Commerce Economics
Environment And Sustainable Development
Quiz 3
Surface water has been polluted due to industrialisation and urbanisation, while, ground water has remained free from contaminants.
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True
0%
False
Explanation
False
Industrialization refers to the process of using natural resources for the development of the economy. The process of industrialization has polluted the surface water as well as groundwater.
Industrial development has led to depletion of natural resources, particularly solar and wind energy resources.
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True
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False
Explanation
False
Industrialization refers to the process of using natural resources for the development of the economy. It has mainly depleted all the non-renewable sources of energy like coal, fossil fuels, etc.
Solid wastes that have not been effectively disposed lead to contamination of ground water resources.
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True
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False
Explanation
In developed countries, the resources are exploited in a very large quantity that has led to the depletion of the stock of natural resources. The industrialization has polluted the surface water as well as groundwater. Groundwater is usually polluted by solid wastes that has no technique of proper disposal.
The Silent valley movement was related to ?
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Cutting of trees
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Building of dam
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Mining
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None
Explanation
Save Silent Valley is a social movement launched to protect an evergreen tropical forest in the Palaghat district of Kerala. It started in 1973 to save silent valley reserve forest and stop construction of Dam (Hydroelectric Project) in the Valley. There has been massive environmental debates to save the endangered wildlife having natural habitat in the valley. It was declared as Silent Valley National Park later in 1984.
Which of the following movements were against the cutting of trees ?
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Chipko Movement
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Appiko Movement
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Silent valley Movement
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Both A and B
Explanation
Chipko Movement and Appiko Movement were the movements carried out against the cutting of trees. These movements was a forest conservation movement in India. It began in 1970s in Uttarakhand, then a part of Uttar Pradesh and went on to become a rallying point for many future environmental movements all over the world. In these movement people Hug the tree and spread the message of conserving trees.
______________ movements are the scientific movements aimed at
preserving the biological system.
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Political
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Economic
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Environmental
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All
Explanation
Environment movements are the movements aimed toward the protection of environment, biological system . The environmental movement also including conservation and green politics, is a dissimilar scientific, social, and political movement to address environmental issues. Environmental movement is a type of "social movement that involves an array of persons, groups and coalitions that observe a common interest in environmental protection and act to bring about changes in environmental policies and practices".
Deforestation has led to decrease in rainfall due to alterations in the hydrological cycle.
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0%
True
0%
False
Explanation
Due to extensive cultivation, the increasing area under cultivation is increasing which results in a large amount of forest depletion that leads to deforestation. This deforestation has led to decrease in rainfall due to alterations in the hydrological cycle.
Article 48A was added to the Directive Principles of State Policy so as to put the responsibility on the __________ to protect and improve the environment.
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public
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government
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private enterprises
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NGOs
Explanation
According to the article 48A in the directive principles of state policy, the government is made responsible to protect and improve the environment to establish a better standard of life for us.
Global climatic changes will affect ___________ in many places, due to affects of soil erosion and reduced rainfall, on agricultural production.
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incomes of people
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food security
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employment level
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demand of goods
Explanation
Global warming refers to an increase in the average temperature of the globe due to heat that gets trapped in the atmosphere because of which the surface of the earth is heated. Global warming has caused global climatic changes that have hampered food security as a result of soil erosion and reduced rainfall, or events of extreme rainfall.
Organic farming is the form of agriculture that uses ___________ as manure, and implements biological pest control.
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biocompose
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chemical fertilizer
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both A & B
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neither A nor B
Explanation
Organic farming refers to the farming where biocomposite known as death matter is used as manure and implements of biological pest control in agriculture to reduce soil and land pollution.
Which among the following can be stated to be a cause of global warming?
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Urbanisation
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Industrialisation
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Both A & B
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Neither A nor B
Explanation
Global warming refers to an increase in the average temperature of the globe due to heat that gets trapped in the atmosphere because of which the surface of the earth is heated. Both urbanization and industrialization have resulted in a large amount of pollution that has caused global warming.
Identify the strategies for sustainable development.
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Equitable use of resources
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Conservation of biological diversity
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Development of organic farming
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All of the above
The use ___________ instead of petrol, as fuel for vehicles, can significantly lower air pollution.
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LPG
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CNG
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diesel
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none of the above
Explanation
CNG is a substitute of petrol which is an eco-friendly mode of fuel due to which air pollution can be lowered in few years.
Identify the strategies for sustainable development from the following.
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Use of eco-friendly technologies
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Setting air-quality and emission standards
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Environment protection
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All of the above
What has been established in the field of climate finance?
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Greenhouse control fund
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Climate change fund
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Green climate fund
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None of the above
The Earth Summit was held in __________ in June, 1992.
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Paris, France
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Washington, US
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Stockholm, Sweden
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Rio, Brazil
Which of the following vehicular fuels is currently accepted as ecofriendly?
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Diesel
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Petrol
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LPG
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CNG
Explanation
$$A)$$ Diesel emissions contribute to the development of cancer; cardiovascular and respiratory health effects; pollution of air, water, and soil; soiling; reductions in visibility; and global climate change. Where instituted, control programs have been effective in reducing diesel fleet emissions.
$$B)$$ Gasoline (petrol) use contributes to air pollution
The vapors are given off when gasoline evaporates and the substances produced when gasoline is burned (carbon monoxide, nitrogen oxides, particulate matter, and unburned hydrocarbons) contribute to air pollution. Burning gasoline also produces carbon dioxide, a greenhouse gas
$$C)\ LPG$$ can be considered a green form of energy because compared to other fuels used for home heating, $$LPG$$ emits virtually no soot and produces extremely low levels of carbon dioxide. It also gives off low levels of other particulates that contribute to pollution and global warmings such as sulphur and nitrogen.
$$D)$$ The use of $$CNG$$ is extremely good for the environment. The use of $$CNG$$ reduces carbon monoxide emissions $$90$$ to $$97$$ percent. In fact, in terms of pollution reduction, converting one truck from diesel to natural gas is the equivalent of taking as many as $$325$$ cars off the road.
$$\mathbf{Hence\ the\ correct\ answer\ is\ option\ (D)}.$$
The ____________ in December 2011 has taken steps to reduce greenhouse gas emissions and set up a Green Climate Fund for this purpose.
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Durban Meet
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Climate Change Convention
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Rio Convention
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Paris Agreement
Explanation
In the field of climate finance, green climate fund has been set up to provide fund for a healthy climate for the people. For this purpose, the Durban Meet in December 2011 was set up.
A fuel when used releases least amount of pollutants in the air .
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sulphur dioxide
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chlorofluorocarbon
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smoke
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CNG
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