« previous next »

Author Question: Once released into the atmosphere, chlorofluorocarbons remain about ____. a. 10-20 days b. ... (Read 142 times)

ARLKQ

  • Hero Member
  • *****
  • Posts: 571
on: Jul 13, 2018
Once released into the atmosphere, chlorofluorocarbons remain about ____.
   a. 10-20 days
   b. 50-100 years
   c. 1-2 years
   d. 1-2 month
   e. 1000 years

Question 2

The so-called ozone hole is observed above the ____.
   a. continent of North America
   b. equator
   c. continent of Australia
   d. continent of Antarctica
   e. continent of Asia


jesse.fleming

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: b

Answer to Question 2

ANSWER: d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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).

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Mechanisms of water movement from soil through plants to the atmosphere. Mechanisms of water movement from soil through plants to the atmosphere.
Muskox populations remain in the Arctic all year, though they migrate to higher elevations in the wi Muskox populations remain in the Arctic all year, though they migrate to higher elevations in the wi
True-color image of layers of haze in Titan's atmosphere. True-color image of layers of haze in Titan's atmosphere.
A difference in oxygen content between the atmosphere and the exhaust gases enables an O2S to ... A difference in oxygen content between the atmosphere and the exhaust gases enables an O2S to ...
(a) Parasympathetic pathway. ACh is released from the preganglionic neuron over the synapse and ... (a) Parasympathetic pathway. ACh is released from the preganglionic neuron over the synapse and ...
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library