Earth And Space Science Semester 2 Final

51 Questions | Total Attempts: 73

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Earth And Space Science Semester 2 Final - Quiz

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Questions and Answers
  • 1. 
    It is estimated that the big bang occurred 14 billion years ago. Most likely, what will the universe will be like 14 billion years from now?
    • A. 

      The universe is still expanding, so in 14 billion years it will be even more spread out.

    • B. 

      Many stars will become black holes, and the universe will collapse back into itself.

    • C. 

      The universe will have expanded to the point of becoming empty and will no longer exist.

    • D. 

      Relative distances between galaxies will become shorter as universal expansion slows.

  • 2. 
    Desalination is one way to increase Earth’s supply of fresh water. Based on what you’ve read, how would you define desalination? Why is it not in wider use around the world?
    • A. 

      It introduces chemicals into the water.

    • B. 

      It remains too costly.

    • C. 

      It doesn't always work.

    • D. 

      It disrupts ocean environments.

  • 3. 
    Stars are balls of gas that give off an enormous amount of electromagnetic energy due to the nuclear _____ taking place within them.
    • A. 

      Fission

    • B. 

      Emissions

    • C. 

      Alignment

    • D. 

      Fusion

  • 4. 
    Because Earth revolves around the sun in a predictable and constant orbit, climate conditions do not change over long periods of time.
    • A. 

      True

    • B. 

      False

  • 5. 
    A typical star has a life cycle that is _____ of years long, making it impossible to observe the whole cycle of one star. 
    • A. 

      Hundreds

    • B. 

      Millions

    • C. 

      Billions

    • D. 

      Thousands

  • 6. 
    Air pollution is found only in heavily populated urban areas.
    • A. 

      True

    • B. 

      False

  • 7. 
    As the channel of the stream erodes, it becomes wider and deeper, eventually carrying more _____ and becoming a river.
    • A. 

      Discharge

    • B. 

      Sand

  • 8. 
    Exercising in high humidity can be uncomfortable, so you want to know how humid it is before you play a game of tennis. Which of these readings would be most useful for you to know?
    • A. 

      Relative humidity

    • B. 

      Absolute humidity

    • C. 

      Dew point

    • D. 

      Air pressure

  • 9. 
    What type of conditions must exist for large waves to form? (Select all that apply.)
    • A. 

      Wavelengths need to be short.

    • B. 

      The fetch must be long.

    • C. 

      Ocean depth must be shallow.

    • D. 

      Winds must be strong and steady

  • 10. 
    How do the major divisions of the global ocean rank in size? A – Arctic Ocean B – Atlantic Ocean C – Indian Ocean D – Pacific Ocean E – Southern Ocean
    • A. 

      B-D-E-C-A

    • B. 

      D-E-B-A-C

    • C. 

      D-B-C-E-A

    • D. 

      E-D-B-C-A

  • 11. 
    The shorter the wavelength of any type of electromagnetic radiation, the more _____ the radiation emits. 
  • 12. 
    In warm, dry areas where the air is very clean, there are few cloudy days because clean air has fewer particles in the atmosphere around which water _____ can condense and form clouds.
  • 13. 
    Within an ice age, glaciers may retreat during _____ periods. 
  • 14. 
    A forest fire in a floodplain have a devastating impact because vegetation keeps the soil from being washed away, and fire would destroy it.
    • A. 

      True

    • B. 

      False

  • 15. 
    Climatologists study the constantly changing climate and create __________, which can be a great service to humanity because predicting change and potential severe consequences could help people to prepare for a natural disaster.
    • A. 

      Weather maps

    • B. 

      Climate models

    • C. 

      Disaster recovery plans

    • D. 

      Contingency campaigns

  • 16. 
    Cloud _____ is a method by which people hope to control one aspect of the weather, helping to produce rain or prevent large storm clouds from forming.
  • 17. 
    Because most exoplanets orbit stars that are similar to our sun, we might reasonably conclude that life exists in other solar systems.
    • A. 

      True

    • B. 

      False

  • 18. 
    Global weather monitoring can foster cooperation between countries that might not otherwise communicate. Why is this the case?
    • A. 

      Severe weather affects the northern hemisphere more than the southern hemisphere, and it is one way in which countries south of the equator can help those north of it.

    • B. 

      Some nations have had breakthroughs in meteorology that are required to be shared throughout the rest of the world.

    • C. 

      Weather monitoring offers a neutral base for discussion and an opportunity for countries to offer information and assistance to each other.

    • D. 

      Satellites that track weather are owned by the world’s superpowers, who must provide the information to other countries to retain their trust.

  • 19. 
    The accuracy of weather forecasting increases as the amount of collected weather data increases, so that meteorologists no longer need to interpret as much.
    • A. 

      True

    • B. 

      False

  • 20. 
    After a windy summer, a farmer in Washington state notices that his apple harvest is far smaller than in previous years. What is the likely cause for this?
    • A. 

      Saltation

    • B. 

      Loess layers

    • C. 

      Air pollution

    • D. 

      Deflation

  • 21. 
    When the sun, moon, and Earth are aligned, the water on Earth that is closest to the moon and/or the sun experiences ___________.
    • A. 

      Neap tides

    • B. 

      Low tides

    • C. 

      Spring tides

    • D. 

      Irregular tides

  • 22. 
    Scientists using submersible technology in recent years have found an abundance of organisms at depths they thought were hostile to life.
    • A. 

      True

    • B. 

      False

  • 23. 
    A major factor in maintaining the balance in the ocean habitat is _____; if it changes on the ocean surface due to increased radiation or the greenhouse effect, sea life at the base of the ocean food web will be affected.
  • 24. 
    The closest Saturn comes to Earth is 1,277,400,000 km. The closest Jupiter comes to Earth is 628,760,000 km. In astronomical units (AU), how much closer does Jupiter come to Earth than Saturn?
    • A. 

      43.2 AU

    • B. 

      64.8 AU

    • C. 

      6.48 AU

    • D. 

      4.32 AU

  • 25. 
    In the late summer of 1859, scientists observing the sun noted an unusually high number of sunspots which generated violent outbursts of energy called solar flares. One was so intense that its charged particles penetrated Earth’s atmosphere, overwhelmed Earth’s magnetic field, and shorted out telegraph wires in the United States and Europe. If solar flares with the intensity of those in 1859 occurred today, the effects would be __________.
    • A. 

      Negligible as the world’s space agencies would be able to predict and avert any negative effects

    • B. 

      Less disruptive because today’s technology is far more advanced than it was in 1859

    • C. 

      Much more disruptive because our technology depends heavily on electricity and radio waves

    • D. 

      Catastrophic because the manmade satellites orbiting the Earth would explode and crash to the planet’s surface

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