This topic contains a solution. Click here to go to the answer

Author Question: ____________ of hydrogen atom nuclei in the core replace the heat the Sun ____________ to keep it in ... (Read 149 times)

jenna1

  • Hero Member
  • *****
  • Posts: 568
____________ of hydrogen atom nuclei in the core replace the heat the Sun ____________ to keep it in equilibrium.
 
  a. Nuclear fusion reactions; loses into space
  b. Nuclear fusion reactions; gains from empty space
  c. Chemical reactions; loses into space
  d. Chemical reactions; gains from empty space
  e. Nuclear fission; loses into space

Question 2

Ptolemy formulated a(n) ___________________ _ model of the solar system to predict positions of the Sun, Moon, and planets.
 
  Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nikmaaacs

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

a

Answer to Question 2

geocentric





 

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

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?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

For a complete list of videos, visit our video library