Chapter 21

Chapter 21

Assessment

Quiz

Created by

Emily Fields

Biology

9th - 10th Grade

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26 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A lake or pond receives runoff containing a large amount of chemical fertilizer.  Which of the following may occur MOST immediately after runoff?
algal bloom
algae death and decomposer overpopulation
recycling of organic compounds
drop in carbon dioxide levels

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why was DDT found to be hazardous over longer periods of time?
it was a natural insecticide
it decomposed rapidly
it built up in consumers instead of decomposing
it killed herbivores instantly

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A construction company buries its trash in an area outside a construction site.  Which of the following is MOST likely to decompose quickly?
wood
nails
fiberglass shingles
cement bricks

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a goal of conservation?
managing natural resources
introducing non-native species into new environments
protecting habitats and wildlife
preserving biodiversity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Human activities can affect biodiversity, but so can natural events.  Which of the following is an example of a natural event that can decrease biodiversity?
lichens and moss form soil as a part of primary succession
birds migrate from Canada to South America
hunters kill deer during hunting season
a tornado knocks down trees in a forest

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these would be the most probable effect of increased use of CFCs?

the ozone layer would disappear suddenly

the ozone holes would shrink

the ozone holes would grow

there would be no change in the ozone layer

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of how human efforts have decreased biodiversity?

re-introducing endangered species into their natural habitats

establishing National Forests that cannot be developed for commercial use

strip mining to obtain valuable natural resources from underneath the earth's surface

recycling and reusing plastic and paper so that they do not enter landfills

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