« previous next »

Author Question: The most important source of the free oxygen in our atmosphere is: A) green plants that carry on ... (Read 117 times)

amal

  • Hero Member
  • *****
  • Posts: 572
on: Jul 14, 2018
The most important source of the free oxygen in our atmosphere is:
 
  A) green plants that carry on photosynthesis.
  B) the dissociation of water vapor in the upper atmosphere.
  C) deforestation.
  D) volcanic degassing.

Question 2

Students at MIT developed a method to produce ________ from agricultural wastes, resulting in a safer indoor fuel for use in developing countries.
 
  A) ethanol B) biodiesel C) fuel cells D) wood E) charcoal
The Environment and You ¦ Christensen, Leege ¦ 2nd Edition
Buy Test-Bank


ong527

  • Sr. Member
  • ****
  • Posts: 285
Reply #1 on: Jul 14, 2018
Answer to Question 1

A

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

amal

  • Hero Member
  • *****
  • Posts: 572
Reply #2 on: Jul 14, 2018
Thank you :)


ong527

  • Sr. Member
  • ****
  • Posts: 285
Reply #3 on: Jul 14, 2018
Happy to help you


« previous next »
 

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

A double bond between two oxygen atoms A double bond between two oxygen atoms
An example of color blindness test. A person with red-green color blindness would not be able to dis An example of color blindness test. A person with red-green color blindness would not be able to dis
Plants Plants
This painting depicts New Orleans in 1803, when the city was acquired—along with much of the modern This painting depicts New Orleans in 1803, when the city was acquired—along with much of the modern
Red and Green Apples Red and Green Apples
Dad is important to me Dad is important to me
Video: Phases of the ovarian cycle

For a complete list of videos, visit our video library