Tag: earth and structure

Questions Related to earth and structure

Because of the compressibility of air, more than $50$% of the mass of the atmosphere is in its _________________.

  1. Lower $3.6$ miles

  2. Below $18$ mile level

  3. Beyond $18$ mile level up to $40$ miles

  4. Beyond $40$ miles


Correct Option: A

How many times larger the sun is as compared with the earth?

  1. $1,000\ times$

  2. $10,000\ times$

  3. $1,00,000\ times$

  4. None of these


Correct Option: C

Which of the following layers of atmosphere contains the electrically charged particles and reflects the ratio waves back to the earth's surface to make wireless communication possible?

  1. Troposphere

  2. Stratosphere

  3. Ionosphere

  4. Exosphere


Correct Option: C

Biosphere is existing because the interaction of ___________.

  1. lithosphere

  2. atmosphere

  3. hydrosphere

  4. all of the above


Correct Option: D

 _____ is the model of the earth. 

  1. Globe

  2. Satellite

  3. Universe

  4. None of these


Correct Option: A
Explanation:

A 3-dimensional model of the Earth is called globe. We cannot see the Earth all of it at once as it is so large. So, globe helps us to see what the whole Earth looks like. A globe is better representation of earth in comparison to a flat map. As the Earth spins on its axis, globe also has an axis and we can rotate it. The globe is tilted to one side because the Earth itself is tilted. So, a globe helps in properly studying the Earth.

_____ part on the globe is sea. 

  1. Red

  2. Green

  3. Blue

  4. White


Correct Option: C
Explanation:

A 3-dimensional model of the Earth is called globe. We cannot see the Earth all of it at once as it is so large. So, globe helps us to see what the whole Earth looks like. The blue part on the globe represents sea. Water covers 71% part of the Earth. That's why, our earth is also called "blue planet".

Which one of the following stars is nearest to the Earth?

  1. Polaris

  2. Alpha Centauri

  3. Sun

  4. Sirius


Correct Option: C

State whether the sentence is true (T) or false(F).
The earth is the third-largest planet is the solar system.

  1. True

  2. False


Correct Option: B
Explanation:
  • Planet Sizes rank wise from biggest to smallest (radii given)
  • Jupiter (69,911 km / 43,441 miles) – 1,120% the size of Earth
  • Saturn (58,232 km / 36,184 miles) – 945% the size of Earth
  • Uranus (25,362 km / 15,759 miles) – 400% the size of Earth
  • Neptune (24,622 km / 15,299 miles) – 388% the size of Earth
  • Earth (6,371 km / 3,959 miles)
  • Venus (6,052 km / 3,761 miles) – 95% the size of Earth
  • Mars (3,390 km / 2,460 miles) – 53% the size of Earth
  • Mercury (2,440 km / 1,516 miles) – 38% the size of Earth