When did pangaea begin to break apart?
a.
20 million years ago
c.
250 million years ago
b.
100 million years ago
d.
2 billion years ago.

Write the overall equation for the reaction for lithium battery

If two objects at different te,peraure are in contact with each other what happens to their temperature

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these