The thermosphere closely corresponds to A) the exosphere. B) ...

[savannahhooper]

The thermosphere closely corresponds to
 
  A) the exosphere.
  B) the homosphere.
  C) the ionosphere.
  D) the heterosphere.
  E) both the ionosphere and the heterosphere.

Question 2

Approximately how many plant and animal species have been classified?
 
  A) 100,000 B) 1.75 million C) 3.6 million D) 111.7 million

[juiceman1987]

Answer to Question 1

E

Answer to Question 2

B

[savannahhooper]

Thanks for the timely response, appreciate it

[shewald78]

Gracias!