Answer:
because God knows what's good and stuff
Answer: I think you're asking 'substances that change by a process' if you are asking so, Here's your answer!
Explanation:
1) SOLID WAX!
changes if heated and turns into the liquid wax
2) WATER!
Changes into Ice if cooled!
HOPE THIS IS APPROPRIATE!
MARK BRAINLIEST!!
Answer:
It was the exchange of crops, livestock, and disease between North America, South America, Europe, and Africa.
Your answer is B. Make an observation.