3 Written Questions

1. a deposit that contains a valuable mineral that has been concentrated by mechanical action
2. a rock that contains a large enough concentration of a mineral making it profitable to mine
3. a mineral, rock, or organic material that can be used as jewelry or an ornament when it is cut and polished

3 Multiple Choice Questions

1. a resource that forms at a rate that is much slower than the rate at which it is consumed
   1. placer deposit
   2. nonrenewable resource
   3. nuclear fusion
   4. nuclear fission
2. the combination of the nuclei of small atoms to form a larger nucleus; releases energy
   1. nuclear fusion
   2. fossil fuel
   3. nuclear fission
   4. gemstone
3. a nonrenewable energy resource formed from the remains of organisms that lived long ago; examples include oil, coal, and natural gas
   1. gemstone
   2. ore
   3. lode
   4. fossil fuel

2 True/False Questions

1. lode → a mineral deposit within a rock formation

   True        False

2. nuclear fission → the splitting of the nucleus of a large atom into two or more fragments; releases additional neutrons and energy

   True        False