Environmental Science MCQs

Question 1

Non-lonizing radiations with specific biological effects are

Accepted Answer

UV radiations

Answer

Gamma rays

Answer

Beta-rays

Answer

X-rays

Question 2

The most harmful of ultraviolet radiation is

Accepted Answer

UV-C,

Answer

UV-B,

Answer

UV-A,

Answer

All the above.

Question 3

Many freshwater animals cannot live for long in sea water and vice versa mainly because of the

Accepted Answer

Osmotic problems

Answer

Change in N levels

Answer

Change in the levels of thermal tolerance

Answer

Variations in light intensity

Question 4

In the Northern Hemisphere, this day has the fewest hours of daylight:

Accepted Answer

Winter solstice

Answer

Summer solstice

Answer

Vernal equinox

Answer

Autumnal equinox

Question 5

IUCN (The International Union For Conservation Of Nature And Natural Resources) headquarters is at

Accepted Answer

Gland, Switzerland

Answer

Paris, France

Answer

Vienna, Austria

Answer

NewYork, USA

Question 6

The earth emits radiation with greatest intensity at:

Accepted Answer

Infrared wavelengths

Answer

Radio wavelengths

Answer

Visible wavelengths

Answer

Ultraviolet wavelengths

Question 7

Slip erosion is also known as

Accepted Answer

landslide

Answer

Earthquake

Answer

Volcano

Answer

Floads

Question 8

Some species of plants and animals are extremely rare and may occur only at a few locations are called

Accepted Answer

Endangered

Answer

Endemic

Answer

Vulnerable

Answer

Threatened

Question 9

Thermal belts are:

Accepted Answer

Warmer hillsides that are less likely to experience freezing conditions

Answer

Pockets of warm air resting on a valley during the afternoon

Answer

Pockets of cold air resting on a valley floor at night

Answer

Cold, below-freezing air found at the top of a mountain