What is an example of a reservoir?
1. Beach
2. Cloud
3. Desert
4. Lake

I think that the best answer is Lake.

A reservoir (/ˈrɛzərvwɑːr/; from French réservoir [ʁezɛʁvwaʁ]; lit. 'storehouse') is, most commonly, an enlarged natural or artificial lake, pond, or impoundment created using a dam or lock to store water.

Please give brainiest if correct, would rlly appreciate it :D

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures