Answer:
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom
Explanation:
to separate Earth's four hemispheres
Answer:
Sometimes, molecules cannot move through the cell membrane on their own. These molecules need special transport proteins to help them move across the membrane, a process known as facilitative diffusion. ... Many channel proteins allow the diffusion of ions. Ions are charged atoms.
Explanation:
Answer:
To see land elevation or underground elevation.
Explanation:
You can use it to know what it under the ground before digging if you need a space to construct a building or parking. Or perhaps, even when building a house.
