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

Author Question: How much of the water on Earth do scientists think was delivered by comets? A) none B) a minor ... (Read 84 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jul 16, 2018
How much of the water on Earth do scientists think was delivered by comets?
 
  A) none
  B) a minor amount
  C) a major amount
  D) all of it

Question 2

What percent of a comet is water?
 
  A) ten percent
  B) thirty percent
  C) fifty percent
  D) eighty percent


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kingdude89

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


jc611

  • Hero Member
  • *****
  • Posts: 552
Reply #2 on: Jul 16, 2018
Thank you :)


kingdude89

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 16, 2018
Happy to help you


« previous next »
 

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Plant cells expand by taking up water into their vacuoles. Plant cells expand by taking up water into their vacuoles.
Properties of Water Properties of Water
Earth’s Revolution and Rotation Earth’s Revolution and Rotation
Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ... Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ...
Nutrients Are Transported through the Circulatory and Lymphatic Systems Water-soluble nutrients Nutrients Are Transported through the Circulatory and Lymphatic Systems Water-soluble nutrients
Water in Chemical Reactions Water in Chemical Reactions
Video: Effect of the environment on coat color in the Himalayan rabbit Animation

For a complete list of videos, visit our video library