Answer:
The answer is letter b. about 2,200 years ago
Explanation:
Eratosthenes of Cyrene was a mathematician, grammarian, poet, geographer, librarian and astronomer from Ancient Greece, known for calculating the circumference of the Earth in 200 BC. He was born in Cyrene, in Africa, and died in Alexandria. He studied at Cyrene, Athens and Alexandria. The contemporaries called it "Beta" because they considered it the second best in the world in several aspects.
Answer:
The correct answer is C. Schizophrenia
Explanation:
The answer for this is "Compromise of 1850".
The Compromise of 1850 is a set of laws dealing with the issue of slavery. California was admitted as a free state, upsetting the groups in favor of slavery and satisfying those opposing it in the U.S senate. In Addition, California abolished the slave trade by entering the Union as a free (no slavery) state.
The answer is b: the native people lacked natural immunities