Air and Atmosphere

Q.

What if photosynthesis does not occur in plants?

Q. What is the differences between pure air and polluted air ?

1. Pure air is full of germs and harmful gases while polluted air contains dust particles only.
2. Pure air contains harmful gases while polluted air contains very few harmful gases.
3. Pure air is free from germs and harmful gases while polluted air contains harmful gases and unwanted substances.
4. Pure air is free from germs and harmful gases but it contains lot of dust particles.

Q. Accroding to ___ act every child aged 6-14 years has the right to free and compulsory education.

1. Right to Knowledge
2. Right to School
3. Education for All
4. Right to Education

Q.

An envelope of air surrounding the Earth is called __________

Q. _________ is a mixture of smoke and fog .

1. Acid rain
2. Smog
3. Clouds
4. Jelly

Q.

Most hazardous metal pollutant of automobile exhaust is

1. Mercury (Hg)

2. Lead (Pb)

3. Cadmium (Cd)

4. Copper (Cu)

Q.

A mixture of fog and smoke is called ____.

1. smog

2. dust

3. dust

4. dust

Q. Accroding to ___ every child aged 6-14 years has the right to free and compulsory education.

1. RTE Act - 1977
2. RTE Act - 2009
3. RTE Act - 1997
4. RTE Act - 2001

Q. The main constituent of air is .

1. Nitrogen
2. Oxygen
3. Helium
4. Hydrogen

Q. Why is it that many people say that it is not good to sleep under a tree at night, why ?

Q.

Plants use ___ to make food through photosynthesis releasing ___ in the process.

1. Oxygen, nitrogen

2. nitrogen, carbon dioxide

3. oxygen, carbon dioxide

4. carbon dioxide, oxygen

Q.

Write in one word.

Bond angle in ozone is = ________.

Q.

The earth is surrounded by an envelope of air called the _________

Q.

F. Give reason.

10. Nitrogen is used in packaging food items.

Q. Who among the following prepared the Constitution of India in 1947?

1. Mahatma Gandhi
2. B.R. Ambedkar
3. Jawaharlal Nehru
4. Rajendra Prasad

Q. RTE stands for:

1. Right To Education Act
2. Right To Environment Act
3. Reservation To Education Act
4. None of the above

Q. The blanket of air that surrounds the earth is called the ___________.

1. atmosphere
2. temperature
3. crust
4. biosphere

Q.

According to the RTE Act, it is compulsory for children in the age group _____ to get free education.

1. 6-14 years

2. 9-15 years

3. 9-15 years

4. 9-15 years

Q.

The frequency $1057MHz$ of radiation arising from two close energy levels in hydrogen belongs to

1. radio waves

2. infrared waves

3. microwaves

4. γ – rays

Q. What are the various difficulties faced by the sanitation workers?

1. Suffering from health related problems.
2. Highly paid salary for this job.
3. People look at them with disgust.
4. Have to face the foul smelling garbages.

Q.

How do potato chips stay fresh and crisp in the plastic bags they are housed in ?

Q. Which of the following is a major source of garbage?

1. Industrial wastes
2. Agricultural wastes
3. Domestic wastes
4. All of the above.

Q.

Which layer of the atmosphere is rich in ozone that absorbs ultraviolet radiation from the sun?

1. Exosphere

2. Troposphere

3. Stratosphere

4. None of these

Q.

The sealed packets in which food items such as chips are sold are usually filled with nitrogen. What is the use of this nitrogen?

Q.

________ region of our atmosphere contains ozone layer.

1. \N
2. \N

3. True

4. False

Q. The temperature of _______ increases upto 1200°C.

1. thermosphere
2. mesosphere
3. stratosphere
4. troposphere

Q. Nitrogen gas is used in packaging of chips.

1. False
2. True

Q. A big dustbin used to dump garbages is called:

1. Plastic
2. None of the above
3. Dalao
4. Crane

Q. Pick the correct statements about Mahatma Gandhi from the following:

1. He was a firm supporter of untouchability.
2. He and his followers had made compost from waste in their Ashram.
3. He and his followers had cleaned toilets to end untouchability.
4. He believed in equality and justice to everyone.

Q.

What Does The Word Begar Mean?