Not For Drinking-Not For Breathing – 8th Class Biology Bits 10th Lesson 

Not For Drinking-Not For Breathing – 8th Class Biology Bits 10th Lesson

Question 1.
The pollution check will be done for every
A) 4 months
B) 5 months
C) 6 months
D) 1 year
Answer:
C) 6 months

Question 2.
The percentage of oxygen in the atmosphere is
A) 12%
B) 13%
C) 14%
D) 15%
Answer:
A) 12%

Question 3.
Decay of organic matter releases the gas into air
A) Nitrogen
B) Ammonia
C) Carbondioxide
D) None
Answer:
B) Ammonia

Question 4.
Thermal power plants of Parawada is in
A) Vijayanagaram
B) Vijayawada
C) Visakhapatnam
D) Macharla
Answer:
C) Visakhapatnam

Question 5.
The power generates by using uranium is called
A) Hydro electric power
B) Thermal power
C) Nuclear power
D) None
Answer:
C) Nuclear power

Question 6.
The unforgettable tragedy towards air pollution in Bhopal took place in the year
A) 1981
B) 1982
C) 1983
D) 1984
Answer:
D) 1984

Question 7.
The industrial waste contains a large number of harmful
A) plants
B) animals
C) chemicals
D) microorganisms
Answer:
C) chemicals

Question 8.
Pollutants emitted by thermal power plants causes this disease
A) Bronchitis
B) Lung cancer
C) Suffocation
D) All of the above
Answer:
D) All of the above

Question 9.
Example for secondary pollutant
A) PAN
B) Chlorine
C) Lead
D) Ammonia
Answer:
A) PAN

Question 10.
The Taj Mahal is situated on the banks of river
A) Ganges
B) Yamuna
C) Brahmaputhra
D) Kaveri
Answer:
B) Yamuna

Question 11.
This is responsible for “minimata” disease.
A) Cadmium
B) Arsenic
C) Mercury
D) Sulphur
Answer:
C) Mercury

Question 12.
The percentage of forests on earth is
A) 19%
B) 20%
C) 25%
D) 27%
Answer:
A) 19%

Question 13.
Sources of CFCs are
A) AC
B) Refrigerator
C) Jet planes
D) All the above
Answer:
D) All the above

Question 14.
‘Vanamahotsav’ is conducted in this month.
A) June
B) July
C) August
D) February
Answer:
B) July

Question 15.
This is an eco-friendly fuel.
A) Coal
B) Diesel
C) Petrol
D) CNG
Answer:
D) CNG

Question 16.
The cause for ‘eutrophication’
A) Nitrates and phosphates
B) Pesticides
C) Chemicals
D) Metals
Answer:
A) Nitrates and phosphates

Question 17.
Ozone layer is being destroyed by
A) CFCs
B) Chlorine
C) CO₂
D) NO₂
Answer:
B) Chlorine

Question 18.
Acid rain is due to this
A) CO and CO₂
B) NO₂ and SO₂
C) Hg and Cd
D) He
Answer:
B) NO₂ and SO₂

Question 19.
SPM can be reduced by installation of this
A) Electrostatic precipitator (ESP)
B) Filters
C) Cooling Towers
D) None
Answer:
A) Electrostatic precipitator (ESP)

Question 20.
This gas is responsible for “Bhopal Gas Tragedy”.
A) Methane
B) Ethane
C) Methyl Isocyanate
D) Acetylene
Answer:
C) Methyl Isocyanate

Question 21.
The petrol now we are using ……….. in our cars is free.
A) Hg
B) Pb
C) Zn
D) Ra
Answer:
B) Pb

Question 22.
Chernobyl disaster happened in ……….. country.
A) USA
B) Iran
C) Iraq
D) Russia
Answer:
D) Russia

Question 23.
The most polluted river in Hyderabad is
A) Manjeera
B) Godavari
C) Krishna
D) Moosi
Answer:
D) Moosi

Question 24.
A drop of engine oil can pollute …………… litres of water.
A) 20
B) 25
C) 30
D) 45
Answer:
B) 25

Question 25.
Sinks of carbondioxide
A) Rivers
B) Water falls
C) Seas
D) Soil
Answer:
C) Seas

Question 26.
‘Global warming’ is due to
A) CO₂
B) Water vapour
C) NO₂
D) Both A and B
Answer:
D) Both A and B

Question 27.
This pollutant tarnishes silver objects and blackens lead paintings.
A) SO₂
B) NO₂
C) PAN
D) Hydrogen sulphide
Answer:
D) Hydrogen sulphide

Question 28.
Expand – PAN
A) Peroxy Acetyle Nitrate
B) Peroxy Acetyle Nitrite
C) Peroxy Accute Nitrate
D) Peroxy Acetylene Nitride
Answer:
A) Peroxy Acetyle Nitrate

Question 29.
Choose the correct mathing.
List – A List – B
1) Acid Rain a) Phosphates and Nitrates
2) Eutrophication b) Mercury
3) Minimata c) SO₂ + NO₂
A) 1 – a, 2 – b, 3 – c
B) 1 – b, 2 – c, 3 – a
C) 1 – c, 2 – a, 3 – b
D) 1 – b, 2 – a, 3 – c
Answer:
C) 1 – c, 2 – a, 3 – b

Question 30.
Identify the mismatched pair.
1) Thermal power – Coal
2) Hydral power – Tides of Sea
3) Tidal power – Water energy
A) 1, 2
B) 2, 3
C) 2 only
D) 3 only
Answer:
B) 2, 3

Question 31.
This gas is released by the incomplete burning of fuels in motor vehicles
A) CO
B) NO₂
C) CO₂
D) SO₂
Answer:
A) CO

Question 32.
If blue litmus is turned into red in water, water is
A) Acidic
B) Basic
C) Neutral
D) None
Answer:
A) Acidic

Question 33.
The following one is a natural cause for air pollution
A) Volcanic eruption
B) Forest fire
C) Automobile emissions
D) Both A and B
Answer:
B) Forest fire

Question 34.

Look at this picture carefully. This activity leads to the
A) Water pollution
B) Air pollution
C) Soil pollution
D) Radioactive pollution
Answer:
B) Air pollution

Question 35.
Observe the picture.

This activity leads to
A) Soil pollution
B) Air pollution
C) Water pollution
D) Sound pollution
Answer:
C) Water pollution

Question 36.
This activity is responsible for….

A) Global Warming
B) Green House effect
C) Air pollution
D) All of the above
Answer:
D) All of the above

Question 37.

The chief gases of the emissions from the factory shown in the figure
A) SO₂
B) NO₂
C) CO₂
D) All of the above
Answer:
D) All of the above

Question 38.
Match the following:
Group – A — Group – B
1. Hydrogen sulphide — A) Power plants
2. Particulate matter — B) Headache
3. Air pollution — C) Automobiles
4. Sulphur dioxide — D) Dust and smoke
5. Hydro carbons — E) Ore refining
6. Ammonia — F) High Blood Pressure
— G) Fertilizer plant
— H) Sea salt production
Answer:
1) B
2) D
3) F
4) A
5) C
6) G

Question 39.
…………. combines with water to form acid rain.
A) Sulphur dioxide
B) Calcium hydroxide
C) Phosphorous monoxide
D) Hydrogen
Answer:
A) Sulphur dioxide

Question 40.
Which of the following is non-renewable source of energy?
A) Solar energy
B) Fuel energy
C) Tidal energy
D) Wind energy
Answer:
B) Fuel energy

Question 41.
Narmada bachao andolan was led by
A) Sunderlal Bahuguna
B) Baba Amte
C) Medha Patkar
D) Kiran Bedi
Answer:
C) Medha Patkar

Question 42.
Global warming is a serious issue which we are facing now. Which of the following gas is responsible for global warming?
A) O₂
B) SO₂
C) PO₂
D) CO₂
Answer:
D) CO₂

Question 43.
Choose the incorrect statement about pollution control activities of river Musi.
i) Solid waste management
ii) Installation of sewage treatment plant
iii) Sending contaminated water into Musi
iv) Develop public awareness
A) i, ii only
B) ii only
C) iii only
D) i, ii, iv only
Answer:
D) i, ii, iv only

Question 44.
If you take print on both sides of the white paper, this resembles
A) Recycle
B) Reuse
C) Recover
D) Reduce
Answer:
D) Reduce

Question 45.
If you keep oiled papers in various corners of your house, you find that
A) oil dries up
B) it becomes oilier
C) dust accumulates on oil paper
D) no change occurs
Answer:
C) dust accumulates on oil paper