Asked by Bob

Different kinds of sedimentary rocks exist because

A. they were formed in different places
B. their formation took different lengths of time
C. they were formed by sediments from different rocks
D. they have been cut differently

I THINK ITS C is that right?
Answered by Ms. Sue
Right.

Answered by Bob
Can you explain it?
Answered by Ms. Sue
http://geology.com/rocks/sedimentary-rocks.shtml
Answered by Bob
What uses wind to generate electricity?
Answered by Ms. Sue
windmills

Answered by Bob
Which source is not a source for fossil fuels?
coal mine
ancient swamps
ancient living organisms
corn fields
Answered by Ms. Sue
And your answer is?

Answered by Bob
corn fields?
Answered by Bob
I think its corn fields but im not sure
Answered by Ms. Sue
You're right. Cornfields are not sources of fossil fuels. The products do not involve any fossils.

Answered by Bob
What are they asking in this question?

Which is an alternative source of
energy?
Answered by Ms. Sue
The main sources of our energy for heat, electricity, and vehicles) are those made of fossils. These are finite sources and will run out some day. They also produce pollution.

Alternate sources of energy are those that are not made of fossils. Some examples are wind and solar power.

http://www1.eere.energy.gov/kids/renergy.html

Answered by kaylee
C they were formed by different sediment rocks
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