This topic contains a solution. Click here to go to the answer

Author Question: Why couldn't life originate on the Moon? a. too many craters b. not within a habitable zone in ... (Read 92 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
Why couldn't life originate on the Moon?
 
  a. too many craters
 b. not within a habitable zone in the Solar System
  c. lack of atmosphere to keep water on its surface
  d. lack of oxygen in its atmosphere
 e. too cold a surface

Question 2

What was needed to develop in Earth's atmosphere to protect organisms from the harmful effects of ultraviolet radiation?
 
  a. weather patterns
 b. a nitrogenous layer
  c. a greenhouse effect
  d. an ozone layer
 e. reflective clouds



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Answer to Question 1

c

Answer to Question 2

d




asmith134

  • Member
  • Posts: 576
Reply 2 on: Jul 27, 2018
Excellent


EAN94

  • Member
  • Posts: 307
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

For a complete list of videos, visit our video library