Which type of resource uses flowing water to create electrical energy? O Hydropower
O Natural gas
O Nuclear energy
O Solar power

Hydropower

Explanation: Hydropower is using water to power machinery or make electricity.It uses water as a fuel, water constantly moves through a vast global cycle, evaporating from lakes and oceans, forming clouds, precipitating as rain or snow, then flowing back down to the ocean.

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

the atomic mass is the bottom number on the element.

-steel jelly