You use metric Ruler to observe an object's length
The metric ruler used Centimeters and millimeters as its measurement. You can see the results on the stripes that is written on the Ruler which describe the length of the object that you use
It had been known that American Indians were discovered by a Portuguese conqueror Christopher Columbus. While it was an honor being discovered, it curtailed exchanges of values and traditions where most of the parties weren't that happy. There were lots of disagreement and even fighting.
The Answer Is D hope I helped
Answer: explicit declarative memory
Explanation: