Answer:
The reason can be attributed to the fact that if more states became free, then those states can easily overturn any southern legislation in government that aligned with their pro-slavery views and if more states became slave states, then the South would have a political advantage in the federal and state governments as this would mean more states would push for southern-aligned legislation.
Explanation:
The correct answer is: the Chinese invented the odometer, which was used for measuring distances traveled.
An odometer or odograph is an instrument used for measuring the distance travelled by a vehicle, such as a bicycle or car. The device may be electronic, mechanical, or a combination of the two. Early forms of the odometer existed in the Ancient China.
Ultraviolet, visible, and infrared.
