« previous next »

Author Question: Which two gases make up a combined total of 99 of clean, dry air in the homosphere? A) carbon ... (Read 29 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Jul 14, 2018
Which two gases make up a combined total of 99 of clean, dry air in the homosphere?
 
  A) carbon dioxide and water vapor B) nitrogen and oxygen
  C) oxygen and carbon dioxide D) nitrogen and argon

Question 2

Who was first to explain the mechanism by which most earthquakes are generated?
 
  What will be an ideal response?


okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 14, 2018
Answer to Question 1

B

Answer to Question 2

H. F. Reid of Johns Hopkins University.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

robinn137

  • Hero Member
  • *****
  • Posts: 544
Reply #2 on: Jul 14, 2018
Thank you :)


okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #3 on: Jul 14, 2018
Happy to help you


« previous next »
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

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

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Transdermal patch administration: (b) patch immediately applied to clean, dry, hairless skin and lab Transdermal patch administration: (b) patch immediately applied to clean, dry, hairless skin and lab
Steps in protein synthesis: The DNA is used as a template to make mRNA (transcription). The mRNA is ... Steps in protein synthesis: The DNA is used as a template to make mRNA (transcription). The mRNA is ...
A turbine wheel is turned by the expanding exhaust gases. A turbine wheel is turned by the expanding exhaust gases.
Maze-dull rats did not make significantly more errors than maze-bright rats when both groups were ... Maze-dull rats did not make significantly more errors than maze-bright rats when both groups were ...
Scrub the nails with a nail brush to loosen oil and dirt. Clean under the nails. Scrub the nails with a nail brush to loosen oil and dirt. Clean under the nails.
The carbon cycle The carbon cycle
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library