1. Because animals are affected by chemicals, scientists are having a hard time finding uncontaminated animals to serve as _________ in experiments.
(a) Helpers
(b) Subjects
(c) Controls
(d) Examples

2. Without plants, there could be no _________ of any kind.
(a) Food
(b) Greenery
(c) Pollution
(d) Animals

3. Plants and animals specifically ________ to live in whatever their environments are.
(a) Used control
(b) Moved
(c) Adapted
(d) Killed

4. Radiation used to be limited to that which occurred naturally - in rocks, cosmic rays, and __________.
(a) Trees
(b) Bombs
(c) Sunlight
(d) Charcoal

5. This kind of vegetable absorbs huge levels of poisons, which would have harmed humans if they had eaten the produce.
(a) Beans
(b) Peppers
(c) Tomato
(d) Carrot

Short Answer Questions

1. The business of chemical _______ is booming because people approach plant life without thinking about any perspective but their own immediate desires.

2. _____________ hurts the soil on a virtually permanent basis, according to Carson.

3. What is the toxin which is released through nuclear explosion?

4. Chemicals can travel down ___________ or in underground aquifers to the bodies of water.

5. What are so popular that tourists come to see them every year?

(see the answer key)

This section contains 192 words
(approx. 1 page at 300 words per page)

View a FREE sample