1. Fish kills can occur due to reduced amount of which
abiotic component in bodies of water?
a. Carbon dioxide b. Oxygen c. Water d. Soil

2. Water is life because all organisms need water to
survive. Water is an a. Abiotic factor b. Biotic factor
c. Habitat d. Ecosystem

3. Human activities can directly cause these
environmental problems, except? a. Drought b. Air
pollution c. Land pollution d. Water pollution

4. A change in any factor, whether living or non-living will
a. Not affect the ecosystem b. Affect the
ecosystem c. Balance the ecosystem d. None of the above

5.
is the source of all energy on earth and is an
important abiotic component of the ecosystem
a. heat b. oxygen c. sunlight d. temperature

6. Changes in the
can have drastic effects.
a.Environment b. Abiotic c. Biotic d. Ecology

7.
threatens the stability of our entire
planet's ecosystems.
a. organisms b. pollution
c. water d. species

8. As more people have moved to the beach, the sea
turtle population has decreased. Which is most likely the
cause of this decrease? a. tropical storms b. habitat loss
c. increase in predators d. warmer temperatures​