2)I learnt that water is a precious resource despite its availability to us and we should not take it for granted.I also learnt that it takes a lot of power and space to reclaim the water from waste we make so we must conserve water to not waste power and space.
3)I learnt that UV rays can kill people.This method for interrogation could prove useful in the future.
4)We could use less water by putting a goal limit to our consumption of water and through this we cannot exceed the use of that amount of water.