« previous next »

Author Question: In the late 1970s, the United States banned the non-essential use of chlorofluorocarbons (CFCs). ... (Read 102 times)

s.tung

  • Hero Member
  • *****
  • Posts: 577
on: Jul 13, 2018
In the late 1970s, the United States banned the non-essential use of chlorofluorocarbons (CFCs). Why?
 A) CFCs are a primary component of photochemical smog.
  B) CFCs are toxic gases.
  C) CFCs reduce the ozone concentration in the stratosphere.
  D) CFCs react with water vapor to form acid rain.

Question 2

Methane (CH4 ), nitrous oxide (N2O), and chlorofluorocarbons (CFCs) are greenhouse gases.
  Indicate whether the statement is true or false


lorealeza77

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 13, 2018
Answer to Question 1

C

Answer to Question 2

True


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
tongue states tongue states
Saline Groundwater in the United States Saline Groundwater in the United States
Gonorrhea Rates in the United States Gonorrhea Rates in the United States
The Location and Number of Farms in the United States, 2012 The Location and Number of Farms in the United States, 2012
Relationship between Income and Happiness in the United States Relationship between Income and Happiness in the United States
Video: Hormonal feedback loop components

For a complete list of videos, visit our video library