Isotopes are two or more of the same type of element. They are different because they all have a different relative atomic mass.
A) The image is a drawing of the sun
B) Energy (light) from the sun
C) carbon dioxide
D) water
E) glucose
F) oxygen
Remember that the equation for photosynthesis is:
carbon dioxide + water -> (light energy) -> glucose + oxygen
Most rocks that we encounter in our normal everyday lives are sedimentary rocks. Sedimentary rocks are rocks that have been worn down gradually over long periods of time. Because it takes very long periods of time (couple decades) for these rocks to change, it often seems as if they don't change at all, when in reality the change is too small for us to realize it!