« previous next »

Author Question: The crust of Mars is believed to ____ than Earth's. a. be much thinner b. be younger c. contain ... (Read 19 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 27, 2018
The crust of Mars is believed to ____ than Earth's.
 
  a. be much thinner
  b. be younger
  c. contain more water
  d. be more geologically active
  e. be much stronger

Question 2

The rotation curve of a galaxy can be used to determine
 
  a. the relative number of hot young stars in the galaxy.
  b. the relative amount of gas and dust in the galaxy.
  c. the radius of the galaxy.
  d. the luminosity of the galaxy.
  e. the mass of the galaxy.


Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

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

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
Planets, Earth and Moon Planets, Earth and Moon
Geothermal energy and powers Earth’s systems Geothermal energy and powers Earth’s systems
Earth’s Biomes "الأرض الحيوية" Earth’s Biomes "الأرض الحيوية"
Formation of Continental Crust Formation of Continental Crust
Happy earth day jk kid drawing Happy earth day jk kid drawing
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library