Of the total energy intercepted at Earth's surface and available ...

[j.rubin]

Of the total energy intercepted at Earth's surface and available for work, only about ________ is actually fixed by photosynthesis.
 
  A) 1
  B) 5
  C) 10
  D) 15

Question 2

Evidence of reversals in the Earth's magnetic field is found along areas of seafloor spreading.
 
  Indicate whether the statement is true or false

[apple]

Answer to Question 1

A

Answer to Question 2

TRUE

[j.rubin]

Thanks for the timely response, appreciate it

[jomama]

Gracias!