1. Plastic Waster
2. Air Pollution
3. Toxic Sludge Dumping
I would say for number three the answer would be 3
Answer: Mantles
Explanation: Mantles convection currents causes plate movement
Answer: The Americas
Explanation:
Scientists use DNA to track the migration of humans across the planet. After a group migrates away from their ancestral homeland, any mutations that occur are not mixed with those left in the ancestral population. Therefore, DNA samples taken from __the Americas__ would have the most unique mutations, representing the most recent population to migrate to a new area.
