2. The diagram to the right illustrates rock layers beneath a forest in the snow-covered mountains of
Canada. Fossils of tropical jungle plants were found
in layer C.
What conclusion can be drawn from this fact?
a. At some point in the past, this area was
covered by water.
b. Plant life has not changed much over many
years.
c. This area of Earth used to have a different
climate than it does now.
d. There is a large underground heated water
supply beneath the forest.