Why is my minecraft crashing?

So I downloaded the fossil and Archilogy mod. I also downloaded the minefactory and reload mod. When I open my minecraft it crashes. Btw I have version 1.7.10 and windows 8.

Do you have forge? Are the mods using 1.7.10?

Those mods may not be compatible with each other. Try using just one. If that doesn't work, I'm not sure.