5. Persistent organie pollutants (POP) are dangerous because they are
A readily available
B considered carcinogens
C. toxic chemicals
D. organic
6. What will happen to organisms ir they are exposed to unfavorable conditions
Use the choices given below.
1. will die
II. adapt
A. I, II and III
B. I and IV only
TII. move to another place
IV. get sickness
C. I. III and IV
D. I only
7. Which of the following is considered as the green revolution that brought to
modern society?
A increased movement into urban areas
B. new farming techniques, crop varieties, and increased food production
C. return to traditional agriculture
D. new breeds of animals capable of the strenuous work on a farm
8. What can you do to alleviate global warming?
A. Choose electric appliances with high energy efficiency,
B. Use compact fluorescent lamps.
C. Stop using disposable cutlery.
D. All of the above.
9. In which of the following ecosystems do tree roots serve as important havens
for biodiversity?
A. Salt marshes
B. Coral reefs
C. Mangrove forests
D. Estuaries
10. The process of mining can be very destructive. Which of the following best
summarizes this destruction?
A. Wildlife loss, toxic waste and run off, air pollution
B. Human death, wildlife loss, acid drainage
C. Vegetation removal, acid drainage, toxic waste and runoff
D. Toxic waste, displacement of wildlife​