Tag: evs

Questions Related to evs

To meet energy crisis what other sources can be exploited?

  1. Wind

  2. Water

  3. Nuclear

  4. All of the above


Correct Option: D
Explanation:

The wind, water, and nuclear energy are renewable forms of energy resources. These reserves once consumed can be replenished again. When there is an energy crisis, due to the reduction in the number of energy reserves, there will be an increase in the use of renewable resources. These energy resources can be exploited for the production of energy when there are no other resources available. 

Thus, the correct answer is option D. 

Greatest problem in the water conservation is to reduce the amount of

  1. Ground water

  2. Precipitation

  3. Evaporation

  4. Run off water


Correct Option: C
Explanation:

Evaporation from water reservoirs in hot arid climates causes a loss of 10 vertical feet a year. This water loss can be controlled by construction of reservoirs with greater water depth and concentration of water into single reservoir. Also wind blowing across the surface of water reservoir causes additional evaporation. A windbreak helps to conserve water. Thus the correct answer is option C.

Salamander is an aquatic animal.

  1. True

  2. False


Correct Option: B

Animals that live in both land and water condition is called as

  1. Terrestrial

  2. Aquatic

  3. Amphibious

  4. All of the above


Correct Option: C
Explanation:
Amphibians spend their lives in water and on land. There are more than 4,000 different kinds of amphibians. Members of this animal class are frogs, toads, salamanders, newts, and caecilians or blindworms.
Before amphibians reach adulthood, they first experience a larval stage, where they breathe primarily through their gills. When they get older, they start to breathe through their lungs, which allows them to live on land. Hence, it is necessary for amphibians to live in both land and water.
So, the correct answer is Amphibious.

Identify the odd one.

  1. Deer, fish, and salamander

  2. Deer, bear, cow, and elephant

  3. Prawns, whales, and shark,

  4. Frog, salamander, and toad,


Correct Option: A

Which of the following is the respiratory organ of the frog?

  1. Lungs

  2. Gills

  3. Moist skin and oral cavity

  4. None of the above


Correct Option: C

Automaticillly typified names of suborders end in __________.

  1. -ales

  2. -ineae

  3. -oideae

  4. -eae


Correct Option: A

Which of the following are the characteristics of amphibians?

  1. They can survive on land as well as water.

  2. They live on trees.

  3. They are aquatic.

  4. Both A and B.


Correct Option: A

Consider the following types of classification.
a. Bent ham and Hooker's system
b. Linnaeu's system
c. Conquest's system
d. Hutchinson's system
The correct sequence of the chronological order in which these classification systems appeared is?

  1. $1, 2, 3, 4$

  2. $2, 1, 4, 3$

  3. $1, 2, 4, 3$

  4. $2, 1, 3, 4$


Correct Option: A