Question

Which is not classified as a fossil fuel?



A.
oil


B.
coal


C.
uranium


D.
natural gas

Answer 1

is it b

Answer 2

please help

Answer 3

Checking -

Answer 4

its a

Answer 5

Coal , oil, and natural gases are - http://www.ecokids.ca/pub/eco_info/topics/energy/quiz/assets/quiz_1.swf

Answer 6

What does the red-shift of galaxies indicate?

Answer 7

A.
The universe is shrinking.


B.
The sizes of the galaxies are shrinking.


C.
The galaxies are moving toward each other.


D.
The universe is expanding.

Answer 8

What does the "redshift" of an object mean?
A person standing in place and listening to passing cars hears the engine sounds at a higher pitch than normal as they approach and at a lower pitch than normal as they recede. This is because the sound waves are compressed into shorter wavelengths as they approach and stretched into longer wavelengths as they recede.


The same is true of light waves. The color red has the lowest wavelength of visible light, so light waves that are stretched will shift toward the red end of the color spectrum. This is known as redshift. Objects in space such as galaxies or exploding stars emit light in the form of light waves. As the light waves travels toward the earth over millions or billions of years, the universe continues to expand, lengthening the traveling waves as it does.

Answer 9

I believe it suppose to be C. Because, uranium is a silvery-white metallic chemical element