Distribution of Earth's Water

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Questions and Answers

What is the main substance of concern in meteorology when discussing evaporation?

  • Nitrogen
  • Carbon dioxide
  • Water (correct)
  • Oxygen

What is the purpose of evaporation when the body sweats?

  • To accelerate perspiration
  • To increase body temperature
  • To remove heat from the body (correct)
  • To induce shivering

Where does transpiration mainly occur in plants?

  • Through flowers
  • Through stomata on the underside of leaves (correct)
  • Through seeds
  • Through roots

What happens to the impurities or salts as water evaporates from a lake?

<p>They are left behind, making the lake salty. (D)</p> Signup and view all the answers

How much of the water passing through a plant is typically utilized in its growth process?

<p>1% (D)</p> Signup and view all the answers

Which of the following is NOT a process involved in the hydrologic cycle?

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

How does the hydrologic cycle restart after water evaporates into the atmosphere?

<p>Water condenses into clouds. (A)</p> Signup and view all the answers

What makes water an excellent solvent?

<p>Its ability to dissolve many polar and ionic substances. (D)</p> Signup and view all the answers

What is required for evaporation to take place?

<p>Energy (B)</p> Signup and view all the answers

Why does water help regulate the environment's temperature effectively?

<p>Because it has a high heat of vaporization. (C)</p> Signup and view all the answers

What is the primary reason for humans and other animals using water's high heat of vaporization?

<p>To cool off. (D)</p> Signup and view all the answers

Why does water have a bent overall structure?

<p>Because oxygen is more electronegative than hydrogen. (B)</p> Signup and view all the answers

What percentage of Earth's surface is covered by water?

<p>71% (A)</p> Signup and view all the answers

Where is the majority of Earth's water found?

<p>In glaciers and icecaps (B)</p> Signup and view all the answers

What percentage of Earth's freshwater is locked up in ice and in the ground?

<p>65.5% (A)</p> Signup and view all the answers

What makes up the smallest portion of surface freshwater?

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

Where do humans get a large portion of their water from?

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

What describes the hydrologic cycle?

<p>Continuous circulation of water in the Earth-Atmosphere system (B)</p> Signup and view all the answers

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