unit c test Flashcards
1
Q
how can the amount of nitrogen in the soil be reduced
A
decomposers
2
Q
the concentration of pollutants in the environment can be increased by
A
biomagnification
3
Q
gas is released by plants during the process of photosynthesis
A
oxygen
4
Q
scientists have concluded that the thinning of the upper ozone layer has been caused by our use of
A
CFCs from aerosol cans
5
Q
slightly more than three quatres of air is composed of
A
nitrogen gas
6
Q
to properly dispose of a hazardous chemical you should always take precautions and if possible what
A
recycling depot
7
Q
blue litmus paper placed in the liquid the paper turned pink what was the liquid
A
an acid
8
Q
where is the greatest concentration of mercury
A
humans
