Answer:
The principle of reducing waste, reusing and recycling resources and products is often called the "3Rs." Reducing means choosing to use things with care to reduce the amount of waste generated. Reusing involves the repeated use of items or parts of items which still have usable aspects.
When Jarin drank a lot of water before going to the doctor, it is possible that his blood pressure will be low. It is because drinking water helps lower blood pressure for it helps eliminate unwanted elements in the body that contributes to increasing a person's blood pressure.
I think it may be hurdles