Author Question: Why did virtually all countries in the world agree to ban the use of CFCs by 2020 for developed ... (Read 38 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
Why did virtually all countries in the world agree to ban the use of CFCs by 2020 for developed countries and by 2030 for developing countries?
 
  A) to prevent acid rain
  B) to reduce global warming
  C) because there are cheaper coolants that work better
  D) because of overwhelming evidence that they destroy the ozone layer
  E) because of overwhelming evidence that they cause smog in cities

Question 2

A gas threatening Earth's ozone layer is
 
  A) sulfur dioxides.
  B) chlorofluorocarbons .
  C) the greenhouse effect.
  D) photochemical smog.
  E) nitrous oxide.



cpetit11

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

For a complete list of videos, visit our video library