« previous next »

Author Question: The recent alternative explanation for the disappearance of Earth's early atmosphere sees this as ... (Read 44 times)

abc

  • Hero Member
  • *****
  • Posts: 543
on: Jul 14, 2018
The recent alternative explanation for the disappearance of Earth's early atmosphere sees this as the primary causative agent:
 
  A) volcanic outgassing.
  B) collisions of Earth with other large bodies.
  C) periodic energy pulses from the surface of the Sun.
  D) gravitational attraction of the Moon.

Question 2

This was probably the predominant gas in Earth's earliest atmosphere:
 
  A) argon.
  B) hydrogen.
  C) water vapor.
  D) nitrogen.


zacnyjessica

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Male Asiatic Lion after a recent fight Male Asiatic Lion after a recent fight
Rivers on Mars and Earth Rivers on Mars and Earth
The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust
Water vapor is supplied to the atmosphere by local evaporation or horizontal transport (advection). Water vapor is supplied to the atmosphere by local evaporation or horizontal transport (advection).
Earth’s Spheres Earth’s Spheres
Earth’s Layered Structure Earth’s Layered Structure
Video: Junction Types - Tight and Adherens Junctions

For a complete list of videos, visit our video library