Ozone Depletion in the Stratosphere
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NEET DIGITAL LIBRARY
BIOXII16: ENVIRONMENTAL ISSUES

345270 Match the columns I and II.
Column I
Column II
A
FOAM
P
Haryana
B
Ahmed Khan
Q
Canada
C
Ramesh Chandra Dagar
R
Bangalore
D
Montreal
S
California

1 A - R, B - P, C - Q, D - S
2 A - S, B - R, C - P, D - Q
3 A - P, B - R, C - Q, D - S
4 A - Q, B - P, C - R, D - S
BIOXII16: ENVIRONMENTAL ISSUES

345252 Which of the following is incorrect regarding UV-B rays?
(a) UV-B damages DNA and mutation may occur.
(b) It causes aging of skin, damage to skin cells and various types of skin cancers.
(c) In human eye, cornea absorbs UV-B radiation.
(d) High dose of UV-B causes inflammation of cornea, called snow-blindness, cataract, etc.
(e) UV-B exposure may permanently damage the cornea.

1 a, b, d
2 a, b, c
3 a, b, e
4 None of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345253 The common refrigerant chlorofluoro-methane (freon) and \(\mathrm{NO}_{2}\) is a serious pollutant because

1 It lowers atmospheric temperature
2 It prevents cloud condensation
3 It destroys haemoglobin
4 It disrupts \(\mathrm{O}_{3}\) layer
BIOXII16: ENVIRONMENTAL ISSUES

345254 Why UV rays are considered as injurious to living organisms?

1 DNA and proteins of living organisms preferentially absorb UV rays
2 Its high energy breaks the chemical bonds within DNA and protein molecules
3 Both 1 and 2
4 None of the above
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BIOXII16: ENVIRONMENTAL ISSUES

345270 Match the columns I and II.
Column I
Column II
A
FOAM
P
Haryana
B
Ahmed Khan
Q
Canada
C
Ramesh Chandra Dagar
R
Bangalore
D
Montreal
S
California

1 A - R, B - P, C - Q, D - S
2 A - S, B - R, C - P, D - Q
3 A - P, B - R, C - Q, D - S
4 A - Q, B - P, C - R, D - S
BIOXII16: ENVIRONMENTAL ISSUES

345252 Which of the following is incorrect regarding UV-B rays?
(a) UV-B damages DNA and mutation may occur.
(b) It causes aging of skin, damage to skin cells and various types of skin cancers.
(c) In human eye, cornea absorbs UV-B radiation.
(d) High dose of UV-B causes inflammation of cornea, called snow-blindness, cataract, etc.
(e) UV-B exposure may permanently damage the cornea.

1 a, b, d
2 a, b, c
3 a, b, e
4 None of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345253 The common refrigerant chlorofluoro-methane (freon) and \(\mathrm{NO}_{2}\) is a serious pollutant because

1 It lowers atmospheric temperature
2 It prevents cloud condensation
3 It destroys haemoglobin
4 It disrupts \(\mathrm{O}_{3}\) layer
BIOXII16: ENVIRONMENTAL ISSUES

345254 Why UV rays are considered as injurious to living organisms?

1 DNA and proteins of living organisms preferentially absorb UV rays
2 Its high energy breaks the chemical bonds within DNA and protein molecules
3 Both 1 and 2
4 None of the above
For More Updates join with Us
BIOXII16: ENVIRONMENTAL ISSUES

345270 Match the columns I and II.
Column I
Column II
A
FOAM
P
Haryana
B
Ahmed Khan
Q
Canada
C
Ramesh Chandra Dagar
R
Bangalore
D
Montreal
S
California

1 A - R, B - P, C - Q, D - S
2 A - S, B - R, C - P, D - Q
3 A - P, B - R, C - Q, D - S
4 A - Q, B - P, C - R, D - S
BIOXII16: ENVIRONMENTAL ISSUES

345252 Which of the following is incorrect regarding UV-B rays?
(a) UV-B damages DNA and mutation may occur.
(b) It causes aging of skin, damage to skin cells and various types of skin cancers.
(c) In human eye, cornea absorbs UV-B radiation.
(d) High dose of UV-B causes inflammation of cornea, called snow-blindness, cataract, etc.
(e) UV-B exposure may permanently damage the cornea.

1 a, b, d
2 a, b, c
3 a, b, e
4 None of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345253 The common refrigerant chlorofluoro-methane (freon) and \(\mathrm{NO}_{2}\) is a serious pollutant because

1 It lowers atmospheric temperature
2 It prevents cloud condensation
3 It destroys haemoglobin
4 It disrupts \(\mathrm{O}_{3}\) layer
BIOXII16: ENVIRONMENTAL ISSUES

345254 Why UV rays are considered as injurious to living organisms?

1 DNA and proteins of living organisms preferentially absorb UV rays
2 Its high energy breaks the chemical bonds within DNA and protein molecules
3 Both 1 and 2
4 None of the above
NEET DIGITAL LIBRARY
BIOXII16: ENVIRONMENTAL ISSUES

345270 Match the columns I and II.
Column I
Column II
A
FOAM
P
Haryana
B
Ahmed Khan
Q
Canada
C
Ramesh Chandra Dagar
R
Bangalore
D
Montreal
S
California

1 A - R, B - P, C - Q, D - S
2 A - S, B - R, C - P, D - Q
3 A - P, B - R, C - Q, D - S
4 A - Q, B - P, C - R, D - S
BIOXII16: ENVIRONMENTAL ISSUES

345252 Which of the following is incorrect regarding UV-B rays?
(a) UV-B damages DNA and mutation may occur.
(b) It causes aging of skin, damage to skin cells and various types of skin cancers.
(c) In human eye, cornea absorbs UV-B radiation.
(d) High dose of UV-B causes inflammation of cornea, called snow-blindness, cataract, etc.
(e) UV-B exposure may permanently damage the cornea.

1 a, b, d
2 a, b, c
3 a, b, e
4 None of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345253 The common refrigerant chlorofluoro-methane (freon) and \(\mathrm{NO}_{2}\) is a serious pollutant because

1 It lowers atmospheric temperature
2 It prevents cloud condensation
3 It destroys haemoglobin
4 It disrupts \(\mathrm{O}_{3}\) layer
BIOXII16: ENVIRONMENTAL ISSUES

345254 Why UV rays are considered as injurious to living organisms?

1 DNA and proteins of living organisms preferentially absorb UV rays
2 Its high energy breaks the chemical bonds within DNA and protein molecules
3 Both 1 and 2
4 None of the above
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