Author Question: 18) The concentration of carbon dioxide in the atmosphere is ________. A) a small fraction of 1 ... (Read 114 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
18) The concentration of carbon dioxide in the atmosphere is ________.
 
  A) a small fraction of 1
  B) approximately 10
  C) approximately 30
  D) approximately 50
  E) approximately 75

Question 2

Over warm oceans, water vapor comprises as much as ________ percent of the volume of the atmosphere.
 
  A) 1
  B) 4
  C) 10
  D) 25
  E) 50


sarahccccc

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

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

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

For a complete list of videos, visit our video library