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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 6 "Earth's Green Mantle".

Multiple Choice Questions

1. What group of substances includes insecticides and pesticides?
(a) Toxic chemicals
(b) Necessary evils
(c) Organic cleaners
(d) Helpful mixtures

2. Without the Earth's ________, there could be no plants.
(a) Human help
(b) Light
(c) Water
(d) Soil

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

4. The organic ____________ insecticides like Malathion and parathion are in wide use in 1962, when the book was written.
(a) Arsenic
(b) Boron
(c) Carbon
(d) Phosphorus

5. The town Carson describes is one where townsfolk and farmers and wildlife all live in _____________.
(a) Harmony
(b) Misery
(c) Conflict
(d) The same place

Short Answer Questions

1. How was the large population of sagebrush destroyed in the West?

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

3. DDT is passed long through the ___________ during the course of nearly everyone's life.

4. In the modern world, life does not have the luxury of ________.

5. Plants growing in contaminated soil may carry the contaminants into their _____________.

(see the answer key)

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