Answer:
a. By Calculating magnetic reversals.
Explanation:
They determine the age of the ocean floor by examining magnetic fields in the planet Earth.
Chemical energy through the process of photosynthesis.
Mainly to make life easier.
if one layer changes than scientists don't need to change all of their data.
it also helps keep organized.
hope this helped
ebs02
:)
Answer:
America and Canada I think
Explanation:
Answer:
13. is Option J) all of the above
and 14 I'm not completely sure but I think its option D.
