Can you list at least three ways to conserve nonrenewable resources

ou can conserve nonrenewable energy resources by making less use of devices that consume the resources, using the resources more efficiently and using alternate technologies. While these are effective ways of conserving resources such as gasoline and electricity from power plants fueled by coal or oil, they apply differently depending on what kind of device, process or machine you are talking about.

Reduce, re-use and recycle in that order of importance. Reduce consumption of the resource through better efficiency, lifestyle changes or by consuming renewable alternatives. Reduction has the greatest impact on conservation. Re-use the resource as much as possible before recycling. While recycling is better than discarding, it is the least efficient way of conserving a resource. 
Abundant resources such as aluminum have a huge impact on other non-renewable resources like coal or natural gas because of the energy they require to extract. While re-use is often not possible, like in soda cans, recycling is far more valuable over disposal.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.