« previous next »

Author Question: Why did virtually all countries in the world agree to ban the use of CFCs by 2020 for developed ... (Read 32 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Jul 14, 2018
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
Reply #1 on: Jul 14, 2018
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
« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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.

How Fast is the World's Population Growing? How Fast is the World's Population Growing?
Despite the globe’s vast social change, people all over the world continue to make race a ... Despite the globe’s vast social change, people all over the world continue to make race a ...
Tobacco smoke and radon are the most dangerous indoor pollutants in the industrialized world Tobacco smoke and radon are the most dangerous indoor pollutants in the industrialized world
Map of Arabic Speaking Countries Map of Arabic Speaking Countries
World Mean Sea-Level Temperatures in January World Mean Sea-Level Temperatures in January
GloFish, marketed as the world’s first GM pet, are a controversial product of genetic engineering GloFish, marketed as the world’s first GM pet, are a controversial product of genetic engineering
Video: Body plan of euglena Animation

For a complete list of videos, visit our video library