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Environmental Science 1.2 Quiz Review
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During ___, liquid water changes into water vapor, which is a gas.
Evaporation
When people burn fossils fuels to heat their homes or drive their cars, ___ is released into the atmosphere.
Carbon dioxide
True or False: A cycle is something that is repeated over and over.
True
True or False: Nitrogen and oxygen are the two most abundant gases in the atmosphere.
True
True or False: Elements can be reduced to simpler substances with the use of special chemicals.
False
The process through which thermal energy from the Sun is absorbed and keeps the Earth warm is called the ___.
Greenhouse effect
In the atmosphere, carbon appears as ___.
Carbon dioxide
When dead organisms ___, carbon returns to the soil and carbon dioxide is released into the atmosphere.
Decompose
The oxygen cycle involves the change from oxygen to ___ and back again.
Carbon dioxide
The process that is the main source of oxygen in Earth’s atmosphere is ___.
Photosynthesis
___ in the soil break down dead organisms and animal wastes. Thus, nitrogen returns to the soil.
Bacteria
Some animals obtain the nitrogen they need when they eat ___ that have absorbed nitrogen compounds from the soil.
Plants
___ in the soil and water fix nitrogen gas in compounds that organisms can use.
Bacteria
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
___ is an important element in proteins, which all organisms need to survive.
Nitrogen
Rain, snow, sleet, and hail are examples of ___.
Precipitation
___ changes back into liquid water during condensation.
Water vapor
Water changes from a liquid to a gas during the process of ___.
Evaporation
The three processes involved in the water cycle are evaporation, condensation, and ___.
Precipitation
The path water follows as it moves from Earth through the ___ and back to Earth is called the water cycle.
Atmosphere
Most of Earth’s water is in the ___.
Oceans
The way water and gases move through ecosystems and are used over and over is called a ___.
Cycle
Many types of ___ are used over and over again in the environment.
Matter