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

Author Question: Water is one of the most common substances in the universe, and vital to us on Earth. What happened ... (Read 72 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558
on: Jul 27, 2018
Water is one of the most common substances in the universe, and vital to us on Earth. What happened to it on Mars?
 
  What will be an ideal response?

Question 2

The center of the Milky Way lies in the direction of the constellation
 
  A) Cygnus. B) Orion. C) Andromeda. D) Sagittarius. E) Virgo.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chem1s3

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 27, 2018
Answer to Question 1

At first, while erupting volcanoes thickened it, Mars' atmosphere was dense enough to stay warm enough for liquid water to flow over much of Mars' ancient surface. But as the core of Mars cooled down, volcanism declined, and Mars' atmosphere lost much of its initial water to space, due to its less surface gravity then our own. Today there is still much water frozen in the polar caps and tundra, and on some occasions it melts fast enough to erupt as small mud flows imaged by the Mars Global Surveyor recently.

Answer to Question 2

D


Haya94

  • Member
  • Posts: 558
Reply 2 on: Jul 27, 2018
Wow, this really help

ttt030911

  • Member
  • Posts: 315
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

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.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

A Bobcat finds water in Tucson, AZ. A Bobcat finds water in Tucson, AZ.
Water Loss Through Evaporation Water Loss Through Evaporation
Common Triggers of Asthma Common Triggers of Asthma
Most common symptoms of systemic lupus erythematosus (SLE). Most common symptoms of systemic lupus erythematosus (SLE).
Greenhouse gas (GHG) and Water vapor (H2O) Greenhouse gas (GHG) and Water vapor (H2O)
Earth Science, 14/E Earth Science, 14/E
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library