Native peoples of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians. Europeans were used to these diseases, but Indian people had no resistance to them.
<u>Answer:</u>
Of an object rolling down an inclined plane, the potential energy decreases as the kinetic energy increases.
<u>Explanation:
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- An object that is located at a certain height is constantly being pulled down by the gravitational force of the planet.
- Thus, the potential of an object to come back to the ground when suspended freely is referred to as potential energy possessed by the object.
- When a spherical object is set free on an inclined plane, it automatically gains motion.
- As long as the object continues to roll down the inclination, it is said to have kinetic energy.
Option C, It declared slaves to be in bondage even in free states or territories, is the right answer.
The supreme court of the United States on March 6, 1857, asserted that a Slave ( Dred Scott) who was living in the free state and territory of the United States was not allowed to his freedom and that the African -Americans were not and could never be subject of the U.S. Citizenship. Supreme Court also declared that Congress had no power to exclude slavery from the territories of U.S. This became Abolitionists (the White Northerners, who opposed Slavery) outraged from the decision made by the Supreme Court.
