depends. how close do you mean. Because technically everything in the cell is close to the surface because of how small it is.
close to the surface
because they want to swim close to the surface
The electrical element inside the iron - causes the sole-plate to get hot. The heat warms the air close to the surface of the metal - and that heat radiates outward.
The gravitational pull keeps the Earth's atmosphere close to the surface...
The air is close to the surface of the earth because gravity holds it there
If your wife knows everything and is okay with this friendship then that is both your choice but typically it is not wise. Ask yourself why you feel compelled to have this friendship as well would you approve and like your wife having a very close single male friend...
A medical term that means at or close to the surface is superficial.
bacteria because they live in or on an organism and they live in large groups that can sometimes cause diseases!
Delete everything
surface soil
The scientific name for veins that are close to the surface is superficial veins. These are the veins you can see under your skin.
Mostly for the same reason you stay close to the surface of the planet - gravity!