Found in grains, vegetables, and fruits, to keep the digestive system working properly and guards against colon cancer.

a) fiber
b) iron
c) calcium
d) vitamin b

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