Environmental Science Final Exam

Front

What is your Ecological or Carbon Footprint?

Back

The ratio of the amount of resources you use to the amount of resources available.

Front

An organism that uses an outside source of energy like the sun to create energy-rich food molecules.

Back

Producer

Front

An organism that obtains energy by eating other organisms.

Back

Consumer

Front

What is the original source of almost all energy in most ecosystems?

Back

sunlight

Front

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

Back

10%

Front

What is the term for each step in the transfer of energy and matter within a biological community?

Back

trophic level

Front

Fresh water makes up what percent of the Earth's water?

Back

3%

Front

__________________ pollution is harder to control, because it can't be traced back to a single source

Back

nonpoint-source

Front

Which of the following is an example of a nonrenewable natural resource? Options: wind energy, sunlight, natural gas, geothermal energy

Back

natural gas

Front

Energy can be classified into...

Back

Renewable and non renewable