Trade and warfare. Trade can increase the countries wealth where war can destabilize a region leading to economic downturns.
Answer:
The remains become fossilized. Fossilization usually occur in organisms with hard, bony body parts, such as skeletons, teeth, or shells. Soft-bodied organisms, such as worms, are rarely fossilized. Sometimes, however, the sticky resin of a tree can become fossilized.
Explanation: