Why is the water drawn from the bottom of the dam rather than the top?​

Falling water produces hydroelectric power.

Near the bottom of the dam wall there is the water intake. Gravity causes it to fall through the penstock inside the dam. ... The water continues past the propeller through the tailrace into the river past the dam.

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

the answer is to check all of them! they all apply well at least i think so!