If someone wanted to cut an apple in half she would use
1. a lever
2.a wheel and axle
3. Pulley
4.a wedge

a wedge.

Explanation:

or it could be a lever. it just depends on the way you think abt it. I would more likely go with a wedge tbh.

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.