should make efforts to preserve the environment for the sake of themselves and their children.
A.
B.
C.
D.

protect -> …………….
A.
B.
C.
D.

pollute -> ………………….
A.
B.
C.
D.

Global warming has accelerated  and had a negative effect                 .
A.
B.
C.
D.

You can take the bus as a(n)                    to driving a car.
A.
B.
C.
D.

Linda said (that), "Environmental pollution is an impact of human activities on the environment."
A.
B.
C.
D.

Mai said (that), "The rising sea level is a product of global warming, a natural phenomenon. The only unnatural thing about global warming is the accelerated rate at which it is happening."
A.
B.
C.
D.

Mary said (that), "Loud and annoying sounds from innumerable vehicles in the highway nearby cause noise pollution."
A.
B.
C.
D.

Tony said (that), "The disposal of untreated sewage in rivers and oceans leads to water pollution."
A.
B.
C.
D.

Peter said (that), "Intensive insecticide and pesticide sprays in agriculture make the soil contaminated."
A.
B.
C.
D.