Tag: earth and structure

Questions Related to earth and structure

Minerals are obtained from ________.

  1. lithosphere

  2. hydrosphere

  3. atmosphere

  4. both A & B


Correct Option: D

Contour bunding is used _______________.

  1. to stop the winds in sandy deserts

  2. to irrigate desert areas

  3. to prevent erosion in hilly areas

  4. None of the above


Correct Option: C
Explanation:

Contour bunding is a proven sustainable land management practice for marginal, sloping, and hilly land where the soil productivity is very low. It is widely adopted by the ethnic minorities of Nepal who practice the shifting cultivation system of farming. 

The National Institute of Oceanography headquarter is located at _______.

  1. Kandla

  2. Mumbai

  3. Cochin

  4. Goa


Correct Option: D

Which of the following statements about Earth's atmosphere is wrong?

  1. The gaseous envelop of the earth that consists of a mixture of gases and water vapours is called atmosphere

  2. The lower level of the atmosphere up to about $7$ miles is called troposphere

  3. The middle region of the atmosphere is called stratosphere

  4. The locus of the point in space where gravity is constant is called ionosphere


Correct Option: D

Which one of the following is the largest ocean?

  1. Arctic Ocean

  2. Atlantic Ocean

  3. Indian Ocean

  4. Pacific Ocean


Correct Option: D
Explanation:
  • The Pacific Ocean is the largest of the world's five oceans, followed by the Atlantic OceanIndian Ocean, Southern Ocean, and Arctic Ocean.
  •  It covers an area of about 155 million square kilometers (about 60 million square miles).
  • The Pacific Ocean is the largest and deepest of the world ocean basins.
  • It covers around a third of the Earth's total area, more than all the land in the world.

The diameter of earth is _____________.

  1. $12,756\ kms$

  2. $14,000\ kms$

  3. $40,000\ kms$

  4. $11,000\ kms$


Correct Option: A
Explanation:
  • The diameter of the earth at the equator is 12756 km, thus the option A is the correct answer. 

Which of the following is not covered in the term biosphere?

  1. Plants

  2. Animals

  3. Man

  4. Mountains


Correct Option: D

Which of the following statements is wrong?

  1. Absolute humidity is expressed in grams per cubic metre of air

  2. 1$^o$C of temperature is reduced with every 165 metres of height

  3. When the temperature of air increases, its capacity to hold moisture decreases

  4. The higher the temperature the lower is the air pressure


Correct Option: C

The solid outer-covering of the earth which envelopes its interior portion is called ____________.

  1. Lithosphere

  2. Hydrosphere

  3. Atmosphere

  4. Biosphere


Correct Option: A

The gaseous envelop of the earth which consists of mixture of gases and water vapours is called ______________.

  1. Troposphere

  2. Stratosphere

  3. Lithosphere

  4. Atmosphere


Correct Option: D