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

Author Question: Elements above hydrogen and helium come from _____. a. the early stages of the Universe, before ... (Read 76 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
Elements above hydrogen and helium come from _____.
 
  a. the early stages of the Universe, before the formation of stars and galaxies
  b. the collision of neutron stars and black holes
 c. cooling and accretion of molecules in dense molecular clouds
 d. the last phases of stellar evolution and stellar death
 e. matter falling into supermassive black holes

Question 2

The importance of the general theory of relativity lies in its description of ____.
 
  a. acceleration
  b. gravity
 c. mass
 d. space-time
 e. velocity



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vickyvicksss

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

d

Answer to Question 2

b





 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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.

For a complete list of videos, visit our video library