« previous next »

Author Question: Approximately how old are the erosion channels seen on the surface of Mars? A) 3 billion years ... (Read 50 times)

saliriagwu

  • Hero Member
  • *****
  • Posts: 537
on: Jul 27, 2018
Approximately how old are the erosion channels seen on the surface of Mars?
 
  A) 3 billion years
  B) 4.6 billion years
  C) 1 billion years
  D) 500 million years

Question 2

How many forces operated in the universe during the GUT era?
 
  A) one, what we call the super force
  B) two, gravity and the GUT force
  C) two, gravity and the electroweak force
  D) three, gravity, the strong force, and the electroweak force
  E) all of the above forces


pami445

  • Sr. Member
  • ****
  • Posts: 303
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Northern ice cap of Mars in 1999 Northern ice cap of Mars in 1999
Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period
Phobos in color by Mars Reconnaissance Orbiter - HiRISE Phobos in color by Mars Reconnaissance Orbiter - HiRISE
Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the
Pineal Gland, Located on the Dorsal Surface of the Midbrain Pineal Gland, Located on the Dorsal Surface of the Midbrain
Video: Dissociative Disorders (Part 1)

For a complete list of videos, visit our video library