« previous next »

Author Question: Which two gases make up a combined total of 99 of clean, dry air in the homosphere? A) carbon ... (Read 100 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?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Couples whose marriages have become distant or hostile can make changes in their patterns of ... Couples whose marriages have become distant or hostile can make changes in their patterns of ...
The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom. The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom.
A typical OBD-II data link connector (DLC). The location varies with make and model and may even be ... A typical OBD-II data link connector (DLC). The location varies with make and model and may even be ...
Carbon is constantly exchanged between large reservoirs in the lithosphere Carbon is constantly exchanged between large reservoirs in the lithosphere
How Chemical Engineer Make a Orange How Chemical Engineer Make a Orange
Carbon copy of her surrogate mother Carbon copy of her surrogate mother
Video: Neurosynapse Animation

For a complete list of videos, visit our video library