Tag: evs - i

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Questions Related to evs - i

Multiple choice evs - i for a pollution free nature ways to prevent air pollution ways to reduce air pollution reducing air pollution

Air pollution takes place in two different layers of the earth's atmosphere :_______.

  1. troposphere and stratosphere

  2. mesosphere and troposphere

  3. stratosphere and hydrosphere

  4. troposphere and hydrosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Air pollution takes place in two different layers of the earth's atmosphere : troposphere and stratosphere.

Multiple choice evs - i for a pollution free nature ways to prevent air pollution ways to reduce air pollution reducing air pollution

Which of the among is a major greenhouse gas implicated in global warming?

  1. $\displaystyle { CH } _{ 4 }$
  2. $\displaystyle { CO } _{ 2 }$
  3. $\displaystyle { NH } _{ 3 }$
  4. $\displaystyle { N } _{ 2 }$
  5. $\displaystyle { O } _{ 2 }$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Option A is the correct answer.

Methane absorbs heat from the sun very effectively and warms the atmosphere, and hence it is a major greenhouse gas

Multiple choice evs - i for a pollution free nature ways to prevent air pollution ways to reduce air pollution reducing air pollution

Thermal pollution causes a decrease in dissolved oxygen.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thermal pollution is when an industry or other human-made organization takes in water from a natural source and either cools it down or heats it up. They then eject the water back into the natural resource, which changes the oxygen level and can have a disastrous effect on the local ecosystem. 

Multiple choice evs - i for a pollution free nature ways to prevent air pollution ways to reduce air pollution reducing air pollution

Environmental pollution can be controlled by:

  1. spraying insecticides and pesticides

  2. the open burning of tree stumps

  3. treating factory wastes before disposing them

  4. disposing hot water from power stations into the sea
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Environmental pollution can be controlled by treating factory wastes before disposing of them. So, if we treat wastewater before disposing of in a river, it will surely decrease the amount of dumped pollutants. 

For example- Steel industries have a high concentration of cyanide in it, and it led to harmful effect. So, treatment is really necessary.

Multiple choice evs - i public facilities and my school public facilities efforts of the government in social circle and its effects on people government in social sector

A school can also help in the development of a community or to solve a problem.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

School is a social institution of education. It plays a pivotal role in human development. Social development is one of the important dimensions. Schooling provides a person the logical thinking. It helps the student to emerge into a responsible being and help to develop its social sphere i.e., the community. It is through education that provides a human being the elements of human relation, economic efficiency, and civic knowledge. Furthermore, the technique of problem-solving helps the students to find a solution to a problem and make strategies. Thus, a school can help in community development or to solve a problem.

Multiple choice evs - i public facilities and my school public facilities efforts of the government in social circle and its effects on people government in social sector

The society gives _____________ to schools.

  1. Owner

  2. Faith

  3. Interlinked

  4. Land
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Things given by society to schools are as follows:

1. Land
2. Donations
3. Manpower
4. Pupil
5. Nobel laureate
6. Necessary facilities like hospitals, grounds for seminars, library, etc.