Unit-4 Current Environmental Issues Quiz
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Questions and Answers

What is the role of a greenhouse in maintaining temperature?

  • Passing visible light and absorbing infrared radiations
  • Passing visible light and reflecting infrared radiations
  • Reflecting visible light and absorbing infrared radiations
  • Absorbing visible light and reflecting infrared radiations (correct)

What natural structure is compared to a greenhouse in the text?

  • Atmosphere (correct)
  • Volcano
  • Ocean
  • Desert

Why are flowers, vegetables, and fruits grown in a glass-covered area called a green house?

  • To shield them from strong winds
  • To protect them from insects
  • To trap energy from the sun (correct)
  • To keep them from freezing

What causes the warming of soil and plants in a green house?

<p>Visible light passing through glass (B)</p> Signup and view all the answers

What keeps the energy of the sun trapped in a green house?

<p>Transparent glass walls (A)</p> Signup and view all the answers

Which term is used to describe the blanket of air that surrounds the earth?

<p>Atmosphere (C)</p> Signup and view all the answers

What does the atmosphere act as according to the text?

<p>A blanket of air (C)</p> Signup and view all the answers

Why is the name 'greenhouse effect' used?

<p>&quot;Greenhouse&quot; draws an analogy with glass-covered areas (A)</p> Signup and view all the answers

What are emitted by warm soil and plants in a green house?

<p>&quot;Infrared&quot; radiations (A)</p> Signup and view all the answers

Which component of sunlight heats up the soil and plants in a green house?

<p>Ultraviolet radiations (D)</p> Signup and view all the answers

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