Scientists Have Been Concerned About a Set of Industrial Chemicals

question 16

Multiple Choice

Scientists have been concerned about a set of industrial chemicals called CFC's (chlorofluorocarbons) because they:

• A) seep into the groundwater and increase the chances of earthquakes
• B) rise into the atmosphere and keep the Earth's heat from escaping
• C) rise into the atmosphere and destroy ozone
• D) rise into the atmosphere and absorb x-rays from space, which we need down here
• E) increase the chances of volcanic eruptions where the Earth's crust is thin