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

Author Question: Evidence for very recent water erosion on Mars comes from the observations of A) dark streaks on ... (Read 69 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
on: Jul 27, 2018
Evidence for very recent water erosion on Mars comes from the observations of
 
  A) dark streaks on crater walls
  B) channels carved on the slopes of volcanoes
  C) dried up river beds on the highlands
  D) mud flows surrounding craters

Question 2

Before the decoupling
 
  A) the Universe was transparent to radiation.
  B) the Universe was opaque to radiation.
  C) protons and electrons combined to form atoms.
  D) there was more helium than hydrogen.
  E) deuterium produced electrons and positrons.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ddddd

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


future617RT

  • Member
  • Posts: 543
Reply 2 on: Jul 27, 2018
Excellent

Joy Chen

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Water potentials decrease (become more negative) as one moves from soil to plant to atmosphere Water potentials decrease (become more negative) as one moves from soil to plant to atmosphere
Rates of water loss by two turtles and a tortoise indicate an inverse relationship between the dryne Rates of water loss by two turtles and a tortoise indicate an inverse relationship between the dryne
In this cartoon, Boss Tweed welcomes cholera—a skeletal figure of death carrying a handbag from “Asi In this cartoon, Boss Tweed welcomes cholera—a skeletal figure of death carrying a handbag from “Asi
Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ... Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ...
The arrangement of water molecules in (a) solid ice, and (b) liquid water. The arrangement of water molecules in (a) solid ice, and (b) liquid water.
A solution of CsF in water has XCsF = 0.0700. What is the molality? A solution of CsF in water has XCsF = 0.0700. What is the molality?
Video: Nerve Impulse Transmission Animation

For a complete list of videos, visit our video library