General MCQ

1. Without the carbon-oxygen cycle, _____.

Answer

Correct Answer: Most life would not exist

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2. Wind tends to move from _____ to _____ pressure areas.

Answer

Correct Answer: High, low

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3. There are ____ molecules of air at high elevations, so air pressure is less.

Answer

Correct Answer: Fewer

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4. The thermosphere has _____ air pressure than the mesosphere. more less equal

Answer

Correct Answer: Less

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5. The shape of star dunes is mostly due to _____.

Answer

Correct Answer: Variable wind directions

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6. The reason winds exist is ________.

Answer

Correct Answer: The unequal heating of the Earth system

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7. The rate of pressure decrease ________.

Answer

Correct Answer: 1 millibars /altitude of 10 metres

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8. The kyoto protocol is to carbon dioxide as the montreal protocol is to ________.

Answer

Correct Answer: Chlorofluorocarbons

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9. The final step in drinking water treatment is _____.

Answer

Correct Answer: Disinfection

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10. The coriolis effect contributes to ________.

Answer

Correct Answer: Global wind patterns

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11. The conservation ethic suggests that __________.

Answer

Correct Answer: Resources should be used from natural areas in a responsible way such that they are not depleted

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12. The concept of the trophic pyramid reflects ________________.

Answer

Correct Answer: The fact that each transfer of energy as you move up the food web results in a loss of about 90%

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13. The air pressure on a rainy day is usually ________ air pressure on a sunny day.

Answer

Correct Answer: Lower than

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14. The _____ store(s) more carbon than the atmosphere.

Answer

Correct Answer: Oceans

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15. The ____ horizon has smaller rock and mineral particles than the other layers.

Answer

Correct Answer: A

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16. Terracing, contour farming, intercropping, and crop rotation all ________.

Answer

Correct Answer: Are techniques for conserving soil resources and fertility

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17. Soil nutrients are important to photosynthesis because they _____.

Answer

Correct Answer: Help with chlorophyll formation

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18. Secondary sewage treatment is designed primarily to ________.

Answer

Correct Answer: Remove the dissolved organic matter

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19. River water held behind a dam is best described as a form of ________.

Answer

Correct Answer: Potential energy

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20. Pollution caused by automobiles is an example of _____.

Answer

Correct Answer: Air pollution

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21. Plants consume water during photosynthesis. they also release it to the atmosphere during ________.

Answer

Correct Answer: Transpiration

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22. Plants are able to release water back into the atmosphere by a process called _____.

Answer

Correct Answer: Transpiration

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23. Planting ________ between regular crops will help replace depleted nitrogen.

Answer

Correct Answer: Legumes

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24. Organisms contribute to soils formation by ________.

Answer

Correct Answer: All of the above

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25. Organic farming ________.

Answer

Correct Answer: Has increased in the United States, Canada, and Europe in recent years

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26. Of all the freshwater on the earth, approximately ________________ is trapped as ice.

Answer

Correct Answer: 80%

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27. Nitrogen oxides and sulfur oxides make _____. acid rain ozone cfcs hydrocarbons

Answer

Correct Answer: Acid rain

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28. Most deforestation in the world is a result of __________.

Answer

Correct Answer: Farming

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29. Lightning results from ________.

Answer

Correct Answer: An imbalance between electrical charges

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30. Landforms formed by molten materials are ____ mountains.

Answer

Correct Answer: Volcanic

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31. Land use planning is best described as _______

Answer

Correct Answer: A branch of public policy for ordering and regulating the development of land

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32. Land degradation in arid, semi-arid, and dry sub-humid areas is known as __________.

Answer

Correct Answer: Desertification

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33. Lakes and rivers constitute _______.

Answer

Correct Answer: A tiny fraction of Earth's freshwater

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34. In temperate latitudes, surface winds tend to blow __________.

Answer

Correct Answer: Away from the equator

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35. Coriolis effect is not closely related to ________.

Answer

Correct Answer: Wind speed

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36. Coal _____.

Answer

Correct Answer: All of the above

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37. Clay has ____ porosity and ____ permeability.

Answer

Correct Answer: Low - high

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38. All types of pollution are harmful, but ________ is among the least damaging forms.

Answer

Correct Answer: Oil

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39. Air _____ at the surface and ______ above a low pressure system

Answer

Correct Answer: Converges; diverges

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40. A __________ pollutant interacts with a part of the atmosphere and becomes a __________ pollutant.

Answer

Correct Answer: Primary; secondary

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