This topic contains a solution. Click here to go to the answer

Author Question: About what percentage of molecules in the air make up the atmosphere below a 6-kilometer altitude? ... (Read 79 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
About what percentage of molecules in the air make up the atmosphere below a 6-kilometer altitude?
 
  A) 20
  B) 30
  C) 40
  D) 50
  E) more than 50

Question 2

A block of wood with a piece of iron tied to the top of it floats in a bucket of water. If the wood and iron are turned over so that the iron is submerged beneath the wood, the water level at the side of the bucket
 
  A) rises.
  B) falls.
  C) remains the same.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zenzy

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

Answer: E

Answer to Question 2

Answer: C



lbcchick

  • Hero Member
  • *****
  • Posts: 550
Both answers were spot on, thank you once again



zenzy

  • Sr. Member
  • ****
  • Posts: 336

 

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

For a complete list of videos, visit our video library