Name: Date:

BS Biology III Quiz no. 5 for Finals

I. Multiple Choice: Cross out the letter of the correct answer

1. One of the most ominous threats for this major habitat is the burgeoning human populations. a. Forest ecosystems b. Marine Habitats c. Freshwater d. None of the above

2. In acid precipitation, _____________, unless controlled, are spewed into the atmosphere, and there they combined with water vapor to produce ________________. a. Chlorine oxide, hydrochloric acid b. Fluorine oxide, fluoric acid c. Sulfur oxide, sulfuric acid d. Phosphorus oxide, phosphoric acid

3. The following are the consequences if forest ecosystem is threatened a. Disruption of the water cycle b. Loss of habitat c. Acid rain d. Interruption of biogeochemical cycles

4. DDT stands for

a. Dichlorodiphenyltrichloroethane

b. Dichlourodiphenyltetraethane

c. Dichlorodiethyltrichlorineethane

d. None of the above

II. True or False: Write the reporter’s initial (either of the two) if the statement is correct. If not, write the correct

word/s above the word/s that makes the statement incorrect. ____________________1.Coal burning can lead to acid precipitation ____________________2.If desertification increases deforestation also increases ____________________3.Acid rain can change the acidity of the soil and can lead to widespread tree mortality III. Essay: Answer the following questions briefly.

1. Point source pollution versus Diffuse pollution (3 points)