Answer: she will need 3750 meters
Explanation:
I think it’s a because that’s the easy question every
Answer: C. there is more silicon than calcium at the surface of the earth
Explanation:
Answer:
As objects move around over time, the energy associated with them—e.g., kinetic, gravitational potential, heat—might change forms, but if energy is conserved, then the total will remain the same. Conservation of energy applies only to isolated systems.
Explanation:
The fossil record indicates that the earliest hominids most likely originated in "Africa," since this is the location from which humans eventually migrated to other locations.
