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

Author Question: Why did Carl Sagan say that we are star stuff? A) The composition of most stars (mostly hydrogen ... (Read 41 times)

NguyenJ

  • Hero Member
  • *****
  • Posts: 516
Why did Carl Sagan say that we are star stuff?
 
  A) The composition of most stars (mostly hydrogen and helium) is about the same as the composition of our bodies.
  B) Cosmic rays reaching Earth from distant astronomical sources may be one source of mutations that help evolution along.
  C) Nearly every atom from which we are made once (before the solar system formed) was inside of a star.
  D) Nearly every atom from which we are made was once inside our star, the Sun.
  E) Sagan thought that all of us have the potential to be movie (or TV) stars like he was.

Question 2

What happens to most of the solar neutrinos between the Sun's core and Earth?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xMRAZ

  • Sr. Member
  • ****
  • Posts: 363
Answer to Question 1

C

Answer to Question 2

Two-thirds of them decay into a new form, only recently observed by Japanese physicists.




NguyenJ

  • Member
  • Posts: 516
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review


bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

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

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?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

For a complete list of videos, visit our video library