Quiz 1: Characteristics and Earth's Subsystem

Which of the following best describes the surface of the planet Earth?

• a thick layer of hydrogen gas
  

• cloudy and hot with lots of volcano
  

• cold, rocky, and covered with red dust
  

• mostly water surface with some areas of land
  

Planet Earth is considered uniquely different from any other planets in the Solar system. Which among the given choices correctly answers the statement?

• Earth is the only planet that changes structure.
  

• Earth is the only planet that turns around in space.
  

• Earth is the only planet that is mostly covered with water.
  

• Earth is the only planet that is mostly made from rocks.
  

Ozone plays an important function in every single organism on Earth. To what

sphere does ozone layer belong?

• atmosphere

• hydrosphere

• biosphere

• geosphere

The atmosphere of the Earth is composed of ___ oxygen and _____ nitrogen

and other gases.

• 0% and 100%

  
  

• 21% and 78%

• 78% and 21%

  
  

• 50% and 50%
  

Relationship between the complex communities of individual organism is seen

in the different systems of the Earth. What do you call the unit in nature?

• ecosystem

• complexity

• ground

• system

What is a greenhouse gas?

• It is a gas that traps heat.
  

• It is a gas that releases heat from Earth.
  

• It is a gas that shields Earth from radiation.
  

• It is a gas that provides protection from space.
  

What will most likely to happen if Earth is the first planet from the sun?

I. No atmosphere

II. No liquid water

III. No energy present

• I and II

• I and III

• II and III

• I, II and III

Given its current position, if Earth is bigger than its size, how will you describe ats atmosphere?

• It will have a thinner atmosphere

• It will have a thicker atmosphere

• Size will not affect the Earth’s atmosphere

• Both A and B are correct
  

How does temperature affect the ability of Earth to support life?

• Temperature intensifies gravity

  
  

• Temperature produces nutrients

  
  

• Temperature protects Earth from radiation

  
  

• Temperature affects biological and chemical processes
  

Which of the following are not a function of Earth’s ozone layer?

I. It produces enough amount of rain.

II. It filters harmful UV radiation that reaches Earth.

III. It regulates the weather on Earth.
IV. It protects Earth from meteors and asteroids impact.

• I, II AND III

• I, II AND IV

• I, III,AND IV

• II, III AND IV