This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the residence time of oxygen in the Earth's atmosphere? A) 10 years B) 100 years C) 500 ... (Read 46 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
on: Jul 14, 2018
What is the residence time of oxygen in the Earth's atmosphere?
 
  A) 10 years
  B) 100 years
  C) 500 years
  D) 5000 years

Question 2

The heterosphere:
 
  A) lies below the homosphere.
  B) contains primarily heavy gases.
  C) is populated primarily by variable gases.
  D) is named for its chemical homogeneity.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aliotak

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


jho37

  • Member
  • Posts: 531
Reply 2 on: Jul 14, 2018
Thanks for the timely response, appreciate it

xoxo123

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio
Solar EM Radiation Penetration into Earth's Atmosphere Solar EM Radiation Penetration into Earth's Atmosphere
Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period
During their elderly years, men and women continue to exhibit aspects of the gender roles that they ... During their elderly years, men and women continue to exhibit aspects of the gender roles that they ...
Earth’s orientation Earth’s orientation
The atmosphere and weather The atmosphere and weather
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library