I did some research and the lowest range was 1,000,000 and the highest was 1,700,000. Its hard to estimate this because they didnt have the proper recording instruments we have today.
Answer: I believe it would be Sonar technology confirmed that the crust was moving
Explanation:
They came on a agreement by voting, in some cases each state would get one vote and it would go from there.
Hoped this helped =)
Answer:
A photograph is a primary source while the painting is a secondary source. The photograph taken by an eyewitness is a primary source because the photographer is present during the actual event, while the painting created later from the memories of the events is a secondary source because the painter is not present during the event. He/She merely uses the memory of the event for the painting.
A primary sources is direct and firsthand experience about an event, person or object.They are original materials on which a research is based. Memoirs, diaries, interviews and surveys are considered as primary sources. Secondary sources are the interpretations, analysis, evaluation and summary of primary sources.It is not the direct or first hand account of an event. Secondary sources include textbooks, bibliographies, reference books, magazine articles and treatises.
Answer:
The answer to this question is A
I hope this helps:)