__1. Biodiversity is the variety of
a. community
b. genes
c. life
d. Species
_2. It keeps the population from increasing in size and helps balance the ecosystem.
a. carrying capacity
b. diversity
c. ecosystem
d. limiting factor
_3. When species maybe extinct in a particular area but continue to exist somewhere else, it is
called
a. endangered
b. extinction
c. extirpation
d. Threatened
_4. It is known as the increase in earth's temperature due to rapid build-up of carbon dioxide and
other gases.
a. acid rain
b. eutrophication
c. greenhouse
d. global warming
5. It occurs when there is a high concentration of organic nutrients from domestic garbage thrown
in the bodies of water.
a. deforestation
b. eutrophication
c. extinction
d. illegal logging