Answer:
You can measure mineral hardness with The Mohs' Scale.
Hope this helped :)
Answer:
Humans evolved in the Eocene period. Humans have impacted the rainforests through mining, agriculture, and construction. True. The Earth's history has had a significant effect on the characteristics of its organisms and biomes.
Explanation:
In Newton's Third Law of Motion, when one object exerts a force on a second object, the forces are equal in magnitude and opposite in direction. The correct answer is B.