Arrange these in the correct order, starting with the layer ...

[shofmannx20]

Arrange these in the correct order, starting with the layer closest to the ground: 1. ozone layer 2. stratosphere 3. troposphere
 
  A) 3, 1, 2
  B) 2, 3, 1
  C) 1, 2, 3
  D) The layers mix freely, so there is no distinction.
  E) none of the above

Question 2

A metal is an element that tends to ________ valence electrons in chemical reactions, becoming a(n) ________ in the process.
 
  A) lose; cation
  B) gain; anion
  C) lose; anion
  D) gain; cation

[blfontai]

Answer to Question 1

A

Answer to Question 2

A

[shofmannx20]

Excellent

[coreycathey]

Gracias!