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Environmental Science 1.2 Quiz Review

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  • When people burn fossils fuels to heat their homes or drive their cars, ___ is released into the atmosphere.
    Carbon dioxide
  • The process through which thermal energy from the Sun is absorbed and keeps the Earth warm is called the ___.
    Greenhouse effect
  • ___ changes back into liquid water during condensation.
    Water vapor
  • Many types of ___ are used over and over again in the environment.
    Matter
  • The process that is the main source of oxygen in Earth’s atmosphere is ___.
    Photosynthesis
  • True or False: Nitrogen and oxygen are the two most abundant gases in the atmosphere.
    True
  • Water changes from a liquid to a gas during the process of ___.
    Evaporation
  • ___ in the soil and water fix nitrogen gas in compounds that organisms can use.
    Bacteria
  • The three processes involved in the water cycle are evaporation, condensation, and ___.
    Precipitation
  • The oxygen cycle involves the change from oxygen to ___ and back again.
    Carbon dioxide
  • ___ in the soil break down dead organisms and animal wastes. Thus, nitrogen returns to the soil.
    Bacteria
  • During ___, liquid water changes into water vapor, which is a gas.
    Evaporation
  • True or False: A cycle is something that is repeated over and over.
    True
  • When dead organisms ___, carbon returns to the soil and carbon dioxide is released into the atmosphere.
    Decompose
  • Rain, snow, sleet, and hail are examples of ___.
    Precipitation
  • The way water and gases move through ecosystems and are used over and over is called a ___.
    Cycle
  • During the process of ___, nitrogen changes from a gas into a form that organisms can use.
    Nitrogen fixation
  • Nitrogen in ___ is essential to passing on genetic information.
    DNA
  • Some animals obtain the nitrogen they need when they eat ___ that have absorbed nitrogen compounds from the soil.
    Plants
  • In the atmosphere, carbon appears as ___.
    Carbon dioxide
  • The path water follows as it moves from Earth through the ___ and back to Earth is called the water cycle.
    Atmosphere
  • True or False: Elements can be reduced to simpler substances with the use of special chemicals.
    False
  • ___ is an important element in proteins, which all organisms need to survive.
    Nitrogen
  • Most of Earth’s water is in the ___.
    Oceans
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