Many of earth’s nonrenewable resources are very rare. other nonrenewable resources, such as coal, are abundant but not easily replaced. what would happen if we used up all the coal on earth?

There would be no more coal left to use.

Explanation:

nonrenewable resources are rare and not so easily to be replaced

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.