Need help ASAP please and thanks

In what cells is the human genome located?

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere