1.switch off the lights and fans
2. switch the car engine off when in a jam or traffic lights
3. make more and more use of renewable sources of energy
conserve
Many governments around the world conserve their natural resources by
one way is to conserve resources is to reduce the amounts that are used
because misuse fof natural resources as well as its important to conserve water , forest etc for our next generation.
deforestation
water,paper,plant
Recycle.
the imperialism and anti imperialsim.
depends on what you mean by "back then".
To keep your inviorment safe.
recycling cardboard boxes
Many natural resources are finite or limited. If they are not conserved and continue to be wasted as they are now, they will eventually run out.