Answer: Streak
Explanation: The color of a mineral in powdered form is called the mineral's streak. To find a mineral's streak, the mineral is rubbed against a piece of unglazed porcelain called a streak plate. The mark left on the streak plate is the streak.
Answer:
B
Explanation:
A. Two electrodes separated by an electrolyte that can generate an electrical current.
the pig's average speed is 7 m/s
