1. Triassic
2. eon > era > period
3. The scientists study fossils and rock layers to find major changes.
Answer:Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.
Explanation:
Answer:
The answer is True.
Explanation:
The sentence above is true it all adds up.
Answer:
GUUUUUUUUURLLLLLL HAVE CONFIDENCE YOU GO QUEEN PERIODT
Explanation:
Calcium is Ca, Carbon is C, Chlorine is Cl
The answer is C