Atmosphere and Photosynthesis Quiz

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Questions and Answers

What role do plants play in maintaining the atmosphere?

  • Absorbing oxygen through respiration
  • Producing carbon dioxide through photosynthesis
  • Releasing oxygen and absorbing carbon dioxide through respiration (correct)
  • Releasing carbon dioxide and absorbing oxygen through photosynthesis

Why do plants intake carbon dioxide?

  • To release carbon dioxide for their growth
  • To obtain water for their growth through transpiration
  • To obtain energy for their growth through photosynthesis (correct)
  • To release oxygen for their growth

Which of the following gases is most essential for respiration in humans and other organisms?

  • Argon
  • Ozone
  • Nitrogen (correct)
  • Carbon dioxide

What is the main source of dust particles in the atmosphere?

<p>Dust brought by winds (A)</p> Signup and view all the answers

Which of the following factors influences the amount of water in the atmosphere?

<p>Proximity to water bodies like oceans and rivers (B)</p> Signup and view all the answers

How do plants contribute to balancing the gases in the atmosphere?

<p>Releasing oxygen and absorbing carbon dioxide through photosynthesis (A)</p> Signup and view all the answers

Why are dust particles in the atmosphere called Condensation nuclei?

<p>Because they help in cloud formation by acting as a surface for water vapor to condense on (D)</p> Signup and view all the answers

Why do mountaineers climbing Mount Everest take oxygen cylinders with them?

<p>Due to the rarefaction of gases, particularly oxygen, with increasing altitude (B)</p> Signup and view all the answers

How is the property of glass utilized in agriculture in cold countries?

<p>By trapping heat and preventing it from escaping greenhouses (D)</p> Signup and view all the answers

Why are cloudy days warmer than days with clear skies?

<p>Clouds trap heat emitted from the Earth's surface and reflect it back (C)</p> Signup and view all the answers

How does deforestation contribute to the increase in carbon dioxide in the atmosphere?

<p>By reducing the number of trees that absorb and store carbon dioxide through photosynthesis (B)</p> Signup and view all the answers

What is Global warming?

<p>The increase in temperature in the atmosphere due to greenhouse gases (A)</p> Signup and view all the answers

Flashcards

Plant role in atmosphere

Release oxygen, absorb carbon dioxide.

Why plants intake CO2

To obtain energy for growth via photosynthesis.

Essential gas for respiration

An atmospheric gas essential for respiration in humans and other organisms.

Source of atmospheric dust

Dust particles in the atmosphere are primarily from wind activity.

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Influence on atmospheric water

Proximity to water bodies affects atmospheric water content.

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Plants & atmospheric gas balance

Plants release oxygen and consume carbon dioxide.

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Dust particles as condensation nuclei

They act as surfaces for water vapor to condense.

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Oxygen cylinders on Everest

Gases become less dense at higher elevations.

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Glass in cold agriculture

Glass traps heat, creating a warmer environment.

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Clouds & warmer days

Clouds trap and reflect heat back to Earth.

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Deforestation & CO2

Less trees means less carbon dioxide absorbtion.

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Global warming

Increase in Earth's atmosphere temperature due to greenhouse gases.

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