This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What could ultimately be linked to the present absence of water on Mars? a. The large decrease in ... (Read 201 times)

bb

  • Hero Member
  • *****
  • Posts: 544
on: Aug 22, 2018

What could ultimately be linked to the present absence of water on Mars?
  a. The large decrease in carbon dioxide
  b. The proximity to the sun
  c. The lack of free oxygen in the atmosphere
  d. The lack of outgassing from the interior of the planet
  e. Excess carbon dioxide



Question 2

High levels of ____ could indicate life on other planets.
  a. free nitrogen
  b. carbon dioxide
  c. free oxygen
  d. methane
  e. ozone



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

trampas

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Aug 22, 2018
Answer to Question 1

a

Answer to Question 2

c


bb

  • Member
  • Posts: 544
Reply 2 on: Aug 22, 2018
Excellent

ultraflyy23

  • Member
  • Posts: 312
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
Map of Mars from Hubble Space Telescope as seen near the 1999 opposition. (North top) Map of Mars from Hubble Space Telescope as seen near the 1999 opposition. (North top)
Ancient Oceans and Lakes on Mars Ancient Oceans and Lakes on Mars
In this cartoon, Boss Tweed welcomes cholera—a skeletal figure of death carrying a handbag from “Asi In this cartoon, Boss Tweed welcomes cholera—a skeletal figure of death carrying a handbag from “Asi
Hydrogen burns to produce energy and water Hydrogen burns to produce energy and water
Mars using Google Mars using Google
Video: Lipid absorption - end products & transport mechanism

For a complete list of videos, visit our video library