Which of the following is a possible effect of environmental hazards?
a. lung problems
b. cancer
c. brain damage
d. all of the above

d. all of the above

a. lung problems
b. cancer
c. brain damage

An ecosystem involves both the biological (plants, animals, human beings) and non-biological (land, water, soil, and atmosphere) community which interacts as a system. More importantly, the living things are very dependent on the abiotic community since it cannot survive by itself. Every animal, plant and human needs the primary physiological needs of water, food and shelter provided by the abiotic system.