Which of the following is a way to conserve water ?
a . taking longer showers
b . reusing water in a factory to cool hot machinery
c . letting the water run while you brush your teeth
d . using open ditches to carry water for irrigation

Option (B) is the correct answer.

Explanation:

Conservation of water means to avoid wastage or unnecessary use of water.

For example, taking longer showers is actually unnecessary use of water.

Whereas when reusing water in a factory to cool hot machinery then it means we are utilizing waste water to carryout a certain task.

Hence, it means we are conserving water.

Thus, we can conclude that reusing water in a factory to cool hot machinery is a way to conserve water.

answer

the ions in solute supperate from eachouthere

1.solid

2.carbon dioxide

3.helium