The cosmological principle has first been clearly stated by <em>Isaac Newton </em>in the "<em>Philosophiae Naturalis Principia Mathematica" </em>in 1687. He proved with mathematical proofs on detailed observational data the principle of “universal gravitation”. The oscillating theory is a cosmological model which suggests that the universe we live in is a one of an innumerable series.
Question: Which statement is true?
Answer: <u><em>B. The oscillating universe theory suggests that the universe will expand forever.
</em></u>
Option 2) Santa Anna signed a treaty with Texas.
<span>In the United States, the Black Codes were
laws passed by Southern states in 1865 and 1866, after the Civil War.
These laws had the intent and the effect of restricting African
Americans' freedom, and of compelling them to work in a labor economy
based on low wages or debt.</span>
Answer:
The Portuguese were using enslaved Africans on sugar plantations in Madeira,They were able to buy slaves from African merchants in this region in return for cloth, horses, trinkets and salt.
Explanation: