1. Unit 8 Test Review
Mrs. Knowlton

2. Why are carbon dioxide and water vapor called the greenhouse gases?
They are found in varying amounts in Earth’s atmosphere
They are found in fixed amounts of Earth’s bedrock
They are good reflectors of infrared radiation
They are good absorbers of infrared radiation

3. Which climate conditions are typical of regions near the North Pole and South Pole?
Low temperature and low precipitation
Low temperature and high precipitation
High temperature and low precipitation
High temperature and high precipitation

4. Which combination of climate factors generally results in the coldest temperatures?
Low elevation and low latitude
High elevation and low latitude
Low elevation and high latitude
High elevation and high altitude

5. Tropical rain forests remove carbon dioxide gas from Earth’s atmosphere. The destruction of the rain forests could affect Earth’s overall average temperature because ___.
more of Earth’s radiation would be absorbed by the atmosphere
more sunlight would be reflected back to space by Earth’s atmosphere
more visible light would be transmitted through Earth’s atmosphere
more ultraviolet light would be transmitted through Earth’s atmosphere

6. Which two gases in Earth’s atmosphere are believed by scientists to be greenhouse gases and are major contributors to global warming?
Carbon dioxide and methane
Oxygen and nitrogen
Hydrogen and helium
Ozone and chlorine

7. lesson the amount of insecticides in the environment
Methods used to reduce sulfur dioxide emissions from smokestacks are an attempt by humans to ___.
lesson the amount of insecticides in the environment
eliminate diversity in wildlife
lessen the environmental impact of acid rain
use nonchemical controls on pest species

8. One environmental problem caused by the use of nuclear power as an energy source is the ___.
destruction of the ozone shield
disposal of wastes
production of acid rain
accumulation of carbon dioxide in the atmosphere

9. Which result of technological advancement has a positive effect on the environment?
Development of new models of computers each year, with disposal of the old computers in landfills
Development of new models of cars that travel fewer miles per gallon of gasoline
Development of equipment that uses solar energy to charge batteries
Development of equipment to speed up the process of cutting down trees

10. Resources that are replenished quickly are called:
Non-renewable
Renewable
Expendable
Reliable

11. Where do fossil fuels come from?
Living organisms
Internal heat of Earth
Sedimentary rocks
Dead plants and animals

12. Which one of the non-renewable resources produces the most air pollution?
Petroleum
Nuclear
Natural Gas
Coal

13. Which of the following substances is fuel used in nuclear power plants?
Uranium
Sulfur dioxide
Petroleum
Carbon Dioxide

14.   The weather characteristics of an air mass result primarily from its ___.
A. Place of origin
B. Size & Shape
C. Rate of movement
D. Direction of movement

15. Which type of air mass would most likely have low humidity and high air temperature?cT cP mT mP

16. Which type of weather is indicated by closely spaced isobars on a weather map?
Calm conditions
Strong winds
Thick clouds
Clear skies