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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5 "Realms of the Soil".

Multiple Choice Questions

1. Toxic substances work to stop the body's natural functions; some of them may cause __________ to begin growing.
(a) Cancer cells
(b) Poisonous reactions
(c) Arms
(d) Resistance

2. Plants growing in contaminated soil may carry the contaminants into their _____________.
(a) DNA
(b) Chlorophyll
(c) Neighbor plants
(d) Tissues

3. What is contaminated with DDT so that it ends up affecting a human consumer of eggs?
(a) Hay in the barn
(b) Farmers
(c) Chicken feed
(d) Water

4. Bacteria, fungi, and algae are the smallest organisms of Earth and they live in the ________.
(a) Water
(b) Stones
(c) Soil
(d) Air

5. There is a disagreement among scientists about how much _______ can be safely stored in the body.
(a) Arsenic
(b) Water
(c) DDT
(d) Fat

Short Answer Questions

1. Farms and orchards do NOT include these trees, in Carson's description.

2. Continued use of pesticides could very well damage soil ___________.

3. Other crops show signs of damage or ______ when planted in contaminated soil.

4. Without the Earth's ________, there could be no plants.

5. Throughout earth's history, living things have __________ with their environment but not changed it.

(see the answer key)

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