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

Author Question: Why couldn't life originate on the Moon? a. too many craters b. not within a habitable zone in ... (Read 104 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

d


asmith134

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

smrtceo

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Life of a Medical School Student Life of a Medical School Student
The Moon's north pole during summer. The Moon's north pole during summer.
Life of a Midlatitude Cyclone Life of a Midlatitude Cyclone
Dissolved oxygen at The Gulf of Mexico’s “Dead Zone” Dissolved oxygen at The Gulf of Mexico’s “Dead Zone”
Life Cycle Nutrition: Pregnancy through Infancy Life Cycle Nutrition: Pregnancy through Infancy
The tree of life, highlighting the phylogenetic relationships The tree of life, highlighting the phylogenetic relationships
Video: Sister chromatids of a metaphase chromosome animation

For a complete list of videos, visit our video library