Using the graph above, answer the following question
(3 points)
The primary sources of energy in the most recent century are ,
wood
,
coal
and
petroleum
Question 2
When were fossil fuels formed(1 point)
Responses
less than 100 years ago
less than 100 years ago
hundreds of years ago
hundreds of years ago
millions of years ago
millions of years ago
billions of years ago
billions of years ago
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The answer to question 1 is:
The primary sources of energy in the most recent century are wood, coal, and petroleum.
The answer to question 2 is:
Fossil fuels were formed millions of years ago.