Author Question: What are the two major components of clean, dry air? What proportion does each represent? What ... (Read 73 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
What are the two major components of clean, dry air? What proportion does each represent?
 
  What will be an ideal response?

Question 2

Cold water rising from deep in the ocean to replace warmer water at the surface is called ________.
 
  Fill in the blank(s) with correct word



Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

Ninety-nine percent of clean, dry air is made up of nitrogen and oxygen. Nitrogen comprises approximately 78 percent and oxygen approximately 21 percent.

Answer to Question 2

upwelling



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

For a complete list of videos, visit our video library