Environmental Science Cycling of Energy and Matter GA SEV1

Most of today’s environmental problems began during which period(s) in human history?

• hunter-gatherer period
• agricultural revolution
• Industrial Revolution
• Both (a) and (c)

Without the greenhouse effect, Earth’s atmosphere would be _____ to support life.

• too hot
• too cold
• too wet
• lacking the oxygen

Which of the following includes all of the water on or near Earth’s surface?

• geosphere
• hydrosphere
• atmosphere
• lithosphere

Where is most of the fresh water on Earth located?

• in reservoirs and lakes
• in ice caps and glaciers
• in oceans
• in streams and tributaries

The energy in most ecosystems comes from

• green plants.
• the sun.
• wind.
• All of the above

The community of a pond is made up of all the

• abiotic factors in the water.
• resources organisms need.
• habitats in and around the water.
• populations of fish, insects, and other living organisms.

Which of the following converts nitrogen in the air into a form plants can use?

• bacteria
• fungi
• protists
• animals

Which of the following describes soil and temperature in an ecosystem?

• abiotic factors
• biotic factors
• unnecessary factors
• selection factors

Which of the following best describes a population?

• members of the same species living in the same place at the same time
• all the red birds in an area
• all types of organisms living in the same place
• all members of the same species

One way that bacteria and fungi are important to the environment is that they

• produce oxygen.
• use the sun’s energy to make their own food.
• are a major food source in many ecosystems.
• break down dead organisms.