« previous next »

Author Question: Once released into the atmosphere, chlorofluorocarbons remain about ____. a. 10-20 days b. ... (Read 148 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?

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

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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 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.

(a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu (a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu
Uterine (fallopian) tube, showing released ovum within the uterine tube. Uterine (fallopian) tube, showing released ovum within the uterine tube.
The Structure of the Atmosphere The Structure of the Atmosphere
Life cycle of acetylcholine (Ach): (1) Ach is released into the synaptic cleft; (2) Ach binds to ... Life cycle of acetylcholine (Ach): (1) Ach is released into the synaptic cleft; (2) Ach binds to ...
Composition of the Atmosphere Composition of the Atmosphere
Debt payments of $1610.00 due today, $725.00 due in 101 days and $670.00 due in 296 days ... Debt payments of $1610.00 due today, $725.00 due in 101 days and $670.00 due in 296 days ...
Video: Muscle Fatigue and Recovery

For a complete list of videos, visit our video library