Vanilla originally came from South and Central America and the Caribbean; the first people to have cultivated vanilla evidently seem to be the Totonacs of Mexico’s East Coast. The Aztecs acquired vanilla when they conquered the Totonacs in the 15th Century; the Spanish, got it when they conquered the Aztecs.
Answer:
In my opinion, if the United States were not a set of unified states under a single national government but rather a set of independent nations without ties to each other, the quality of life of the inhabitants of each independent state would drop considerably. This is so because the economies of each state would be significantly less decisive than the American economy in general, and except for specific cases such as California, Texas or New York, the rest of the states would have a notable lack of resources that should be compensated through unfavorable trade treaties with other countries. In addition, the demographic and political weight of each state would be much smaller, which would not be able to obtain the same commercial benefits that are obtained today, which would generate a greater lack of jobs and a decrease in the quality of life of the citizens.
Answer:
Radio telescopes, telescopes detecting infrared radiation, gamma rays, and X-rays and space-based telescopes are essential in modern astronomy.
Answer:
Correct answer is Wegener had no compelling mechanism to explain what would cause the continents to move.
Explanation:
A is not correct as through his researches he presented his theory to other scientist.
B is not correct as Wegener was very educated, and was even even working as a professor at University.
C is correct that although he presented his theory, he couldn't explain totally how it happened.
D is not correct as during his lifetime his theory wasn't widely accepted. That happened 20 years after his death.
The ocean around Antarctica
