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

Author Question: Why is there virtually no hydrogen and helium present in the atmosphere today? A) These gases ... (Read 84 times)

savannahhooper

  • Hero Member
  • *****
  • Posts: 576
on: Jul 15, 2018
Why is there virtually no hydrogen and helium present in the atmosphere today?
 
  A) These gases were burned off by solar radiation.
  B) The gravitational force of Earth was not strong enough to hold them.
  C) These gases were consumed by rock-forming processes.
  D) Acid rain removed these gases from the atmosphere.

Question 2

Which process is responsible for the oxygen in the atmosphere today?
 
  A) Photosynthesis
  B) Outgassing of volcanoes
  C) Weathering of carbonate rocks
  D) Asteroid impact


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CharlieArnold

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A


savannahhooper

  • Member
  • Posts: 576
Reply 2 on: Jul 15, 2018
Thanks for the timely response, appreciate it

ghepp

  • Member
  • Posts: 361
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

The Helium Atom. The Helium Atom.
Atmosphere of Venus in UV, by Pioneer Venus Orbiter in 1979 Atmosphere of Venus in UV, by Pioneer Venus Orbiter in 1979
The Atmosphere Screens Earth from Harmful Solar Radiation The Atmosphere Screens Earth from Harmful Solar Radiation
In early capitalism, children worked alongside adults. At that time, just as today, most street ... In early capitalism, children worked alongside adults. At that time, just as today, most street ...
Expansion Ratios for Liquefied Compressed Gases Expansion Ratios for Liquefied Compressed Gases
Major Types of Hydrogen Bonds Found in Biomolecular Interactions Major Types of Hydrogen Bonds Found in Biomolecular Interactions
Video: Hormonal feedback loop components & Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library