1、Pollution refers primarily to the______of air, water, and land by wastes.
A、handling
B、killing
C、fouling
D、controlling
2、Rachel Carson is a (an)______.
A、alarmist
B、philosopher
C、ecologist
D、columnist
3、Living creatures are living in harmony______the surroundings.
A、of
B、with
C、within
D、to
4、Environmental problems nowadays include______?
A、deforestation
B、desertification
C、sand storm
D、soil erosion
5、Pesticide is harmful both to people’s health and the environment.
A、对
B、错
