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

Author Question: Why does the Earth's atmosphere contain much more nitrogen than hydrogen? What will be an ideal ... (Read 29 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
on: Jul 27, 2018
Why does the Earth's atmosphere contain much more nitrogen than hydrogen?
 
  What will be an ideal response?

Question 2

If the hypothesis tracing the extinction of the dinosaurs to an impact is correct, the dinosaurs died off largely because ________.
 
  A) the impact caused massive earthquakes worldwide
  B) radiation from iridium in the asteroid caused the dinosaurs to die of cancer
  C) of global climate effects initiated by dust and smoke that entered the atmosphere after the impact
  D) of injuries suffered from direct hits of pieces of the asteroid or comet


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ilianabrrr

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

Heavier nitrogen can be retained by our gravity, whereas lighter hydrogen leaks away into space, because its average molecular speed at the Earth's temperature exceeds the Earth's escape velocity.

Answer to Question 2

C


kfurse

  • Member
  • Posts: 590
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

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

« previous next »
 

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Examples of hydrogen bonds and DNA Examples of hydrogen bonds and DNA
Photosynthetic Organisms Changed Earth's Atmosphere Photosynthetic Organisms Changed Earth's Atmosphere
Hydrogen Bonds Can Form Between or Within Molecules Hydrogen Bonds Can Form Between or Within Molecules
Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the
Gravity on Earth Vs. Gravity in Bed Gravity on Earth Vs. Gravity in Bed
Earth’s Climate System Earth’s Climate System
Video: Effect of the environment on coat color in the Himalayan rabbit Animation

For a complete list of videos, visit our video library