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Science Chapter 3 Unit D
Test Description: Human Impact on Ecosystems
Instructions: Answer all questions to get your test result.
1) the measure of the number of people in a given area
A
limiting factor
B
biodiversity
C
population density
2) any type of material or energy that humans need to meet their needs
A
limiting factors
B
natural resources
C
pollution
3) addition of harmful substances to the environment
A
pollution
B
conservation
C
limiting factors
4) the number and variety of life forms within an ecosystem
A
conservation
B
limiting factor
C
biodiversity
5) ways of living that use natural resources without using them up
A
conservation
B
sustainable
C
biodiversity
6) process of saving or protecting natural resources
A
sustainable
B
population density
C
conservation
7) Which statement BEST explains why Earth's population has grown very rapidly in the last 100 years?
A
on average, women are having children at an older age
B
more land has been cleared for housing
C
people live longer because of improved health care and nutrition
8) Which of the following natural resources is likely to be used up the soonest?
A
petroleum
B
water
C
wood
9) Which describes a sustainable practice?
A
conservation tillage and natural fertilizers
B
allowing unlimited use of water for higher fees
C
more efficient removal of oil from underground deposits
10) How do human activities affect biodiversity?
A
Overall, human activities increase biodiversity
B
Overall, human activities don't increase or decrease biodiversity
C
Overall, human activities decrease biodiversity
11) Burning fossil fuels release pollutants such as ______ into the air
A
sulfur dioxide
B
water vapor
C
oxygen
12) Renewable resources include sunlight, trees, and
A
coal
B
natural gas
C
water
13) Which answer is an example of a high biodiversity?
A
1 square mile in a cattle farm
B
1 square mile in the rainforest
C
1 square mile in the city
14) The following activities endanger biodiversity
A
introduction of invasive species
B
all of the above
C
deforestation
15) Energy companies promote sustainability by
A
increasing use of fossil fuels
B
using solar power
C
clear-cutting forests
*select an answer for all questions
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