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

Author Question: Why does Earth have so little carbon dioxide in its atmosphere compared to Venus? A) Earth once ... (Read 36 times)

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
on: Jul 27, 2018
Why does Earth have so little carbon dioxide in its atmosphere compared to Venus?
 
  A) Earth once had a lot of carbon dioxide, but it was lost to space during the heavy bombardment early in our solar system's history.
  B) Chemical reactions turned Earth's carbon dioxide into nitrogen.
  C) Earth has just as much carbon dioxide as Venus, but most of it is locked up in carbonate rocks rather than being free in the atmosphere.
  D) Earth's volcanoes outgassed far less carbon dioxide than those on Venus.

Question 2

You see a crescent Moon setting after the Sun sets. Is it waning or waxing?
 
  A) can't distinguish based on the information provided
  B) waxing
  C) waning


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shewald78

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

B


Mr3Hunna

  • Member
  • Posts: 536
Reply 2 on: Jul 27, 2018
:D TYSM

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

The carbon cycle. The carbon cycle.
Mechanisms of water movement from soil through plants to the atmosphere. Mechanisms of water movement from soil through plants to the atmosphere.
Carbon Isotope ratio Carbon Isotope ratio
Layers of Earth Layers of Earth
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Earth-Moon-Sun Positions during the Neap Tide Earth-Moon-Sun Positions during the Neap Tide
Video: Activation Energy - Valence Electrons

For a complete list of videos, visit our video library