Author Question: Of the total energy intercepted at Earth's surface and available for work, only about ________ is ... (Read 80 times)

j.rubin · **on:** Jul 14, 2018

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