The relatively massive, positively-charged particles in the nucleus of an atom are:a. protons. b. ...

The relatively massive, positively-charged particles in the nucleus of an atom are:a.
   protons.
  b. neutrons.
  c. electrons.
  d. megatrons.
  e. none of the above

An atom is:
  a. a negatively-charged particle that circles a nucleus.
  b. a positively-charged particle within a nucleus.
  c. the smallest particle into which an element can be divided while still retaining the
  chemical characteristics of that element.
  d. a combination of elements.
  e. a negatively-charged particle that orbits the nucleus

Which of the following is not true of minerals? They are(have):
  a. crystalline.
  b. organic.
  c. naturally occurring.
  d. definite chemical composition.
  e. characteristic physical properties.

Resources that include sand, gravel, crushed stone, salt, and sulfur are known as
  ____________________ resources. Fill in the blank(s) with the appropriate word(s).