This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why did Carl Sagan say that we are star stuff? A) The composition of most stars (mostly hydrogen ... (Read 42 times)

NguyenJ

  • Hero Member
  • *****
  • Posts: 516
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
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

LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Star-nosed mole Star-nosed mole
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth. False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
A Binary Star System A Binary Star System
Fully Convective Star Fully Convective Star
Hydrogen bond Hydrogen bond
If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ... If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ...
Video: Exercise and cardiac output

For a complete list of videos, visit our video library