Answer:
The correct answer is option A) we began to make global observations that required recognition that the continents and oceans had not always been in their current positions.
Explanation:
The knowledge of the continuous movement of the Earth is based on the work of the scientists who study the movement of the continents. This process is called "plate tectonics." Earthquakes and volcanic activity are the result of that process. Scientists have discovered that the surface of the Earth is cracked. They call these pieces "tectonic plates." Up to 20 tectonic plates cover the Earth. Sometimes they hit each other and sometimes they move away from each other. Because some continents are above two plates, the continents move when the plates do.
Answer:
"by studying the past we unlock the keys to our future"
"if you don't know history ur doomed to repeat it"
also so that we can graduate with a 4.000
Explanation:
Answer:
No, dipping letters in vinegar was a gooc conclusion to preven the spread of the yellow fever.
The sentences are in the explanation as this space is used to the statement.
Explanation:
The four sentences are the following:
Yellow fever is a viral condition that does not travel outside the body of a mosquito.
The yellow fever virus was not in the environment and couldn't infect the subject without entering the body directly from a fluid.
The letters shouldn't have had to be dipped in vinegar because the virus was harmless in the letter as it would most likely die in the time the letter would take to reach the destination.
The yellow fever is a disease that didn't require more than preventing a mosquito's bite to be avoided.
