The international treaty that bans the use of chlorofluorocarbons is the ________
What will be an ideal response?
Answer: Montreal Protocol
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Suppose it is warm and raining, and a cold front is moving toward your location. Directly behind the cold front, the weather is cold and snowing, and further behind the front, it is cold and clearing. The front is scheduled to pass your area in six hours. Which of the following describes the persistence forecast for your area 12 hours from now?
A. cold and clearing B. cold and cloudy C. cold and snowing D. warm and raining
Chlorinated hydrocarbons are ____
A) toxic compounds used in pesticides and industrial solvents that cause problems in some areas of the ocean B) created by chemosynthetic bacteria in the ocean C) a physical resource extracted along with petroleum D) important nutrients for some species of phytoplankton
Erosion can result in a vicious cycle of worsening erosion because
A) rainwater increasingly soaks into the ground. B) the accumulation of humus makes erosion more likely. C) plants are less likely to grow in an eroded region. D) the pH of the soil increases as erosion continues.
The storm surge
A) is stronger on one side of the hurricane than the other. B) results in slowly rising sea levels at shorelines. C) causes few deaths. D) is typically only one to a few kilometers wide. E) all of the above