I can't imagine what A and B would contribute to life expectancy.
C is a bit of a different choice. It would, I think, decrease the life expectancy of the general population depending on which country is allowed to come into America.
The best answer to an increased life expectancy would be D. It is certainly true.
D <<<<< Answer
<span>There were several different innovations that came out of World War I including: 1) The development of the tank- This allowed soldiers to be transported at a faster rate and also allowed increased protection during their travels.
2) Poison gas- This dangerous chemical gas was used as a means to combat the strategy of trench warfare.
3) Airplanes- This was the first major war that used airplanes as a means of transporation. This use of airplanes would revolutionize the way war is fought forever. </span>
A. One of the main conflicts had been the October War of 1973 -- also known as the Yom Kippur War (in Israel) and the Ramadan War (in Arab nations). That war had been by a coalition of Arab states, led by Egypt and Syria, against Israel. Israel had won and was occupying the Sinai peninsula.
B. The three key leaders involved were President Jimmy Carter of the United States, Prime Minister Menachem Begin of Israel, and President Anwar Sadat of Egypt.
C. It was monumental for these leaders to meet -- especially the leaders of Israel and Egypt, because they had been in conflict with one another since the establishment of Israel in 1948.
D The years since the Camps David Accords have seen a sustained peace agreement between Israel and Egypt -- one of the few lasting peace agreements in the Middle East.
Answer:
The germ theory of disease.
Explanation:
Ignaz Philipp Semmelweis is widely credited with the invention of the use of antiseptics in the reduction of puerperal fever in clinics.
However, the piece of scientific knowledge that he was missing to explain his discovery was the germ theory of disease.