A scientific theory . a.
describes what occurs every time in a given situation
b.
is not validated by experimentation
c.
can never be changed
d.
is an explanation for a set of events

Please select the best answer from the choices provided

D! I had this question for a test last year :)

b

Explanation:

it is experimental and can be changed

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

tracks, burrows, eggshells, nests, tooth marks, or gastroliths