Nuclear fusion is the changing of hydrogen and helium into ...

[segrsyd]

Nuclear fusion is the changing of hydrogen and helium into heavier elements of carbon, oxygen, silicon, and iron in stars.
  Indicate whether the statement is true or false

Question 2

Why does sound travel rapidly though the lower well-mixed surface layer?
 A) Temperature and pressure are homogeneous
  B) Temperature and salinity are homogeneous
  C) It produces high refraction areas
  D) Density is heterogeneous

[Bison]

Answer to Question 1

True

Answer to Question 2

B

[segrsyd]

Gracias!

[kalskdjl1212]

Thanks for the timely response, appreciate it