Environmental Science MCQs

Question 1

Which latitude belt best describes the middle latitudes?

Accepted Answer

Answer

20o to 80o

Answer

10o to 35o

Answer

20o to 35o

Answer

40o to 70o

Question 2

At middle latitudes, the base of an altostratus or altocumulus cloud would generally be found between:

Accepted Answer

6,500 and 23,000 feet

Answer

200 and 6,500 feet

Answer

23,000 and 43,000 feet

Answer

Above 43,000 feet

Question 3

Percentage of forest area recommended by the the national forest policy for plains is

Accepted Answer

33%

Answer

67%

Answer

30%

Answer

10%

Question 4

Commonly used radioactive isotopes in scientific research

Accepted Answer

all of these

Answer

14 C

Answer

125 I

Answer

32 P

Question 5

If water vapour comprises 3.5 percent of an air parcel whose total pressure is 1,000 mb, the water vapour pressure would be:

Accepted Answer

35 mb

Answer

1,035 mb

Answer

350 mb

Answer

965 mb

Question 6

Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly:

Accepted Answer

50% of the air molecules in the atmosphere

Answer

10% of the air molecules in the atmosphere

Answer

25% of the air molecules in the atmosphere

Answer

75% of the air molecules in the atmosphere

Question 7

Mobile combustion accounts

Accepted Answer

50-60 % of air pollution

Answer

10-20% of air pollution

Answer

40-50% of air pollution

Answer

5-10 % of air pollution

Question 8

The range of normal human hearing is in the range of

Accepted Answer

50Hz to 15000 Hz

Answer

10 Hz to 80 Hz

Answer

50 Hz to 80 Hz

Answer

15000 Hz and above

Question 9

At which temperature would the earth be radiating energy at the greatest rate or intensity?

Accepted Answer

Answer

-5o F

Answer

-40o F

Answer

60o F

Answer

32o F