Answer:
C. Thirty-six years
Explanation:
Biden was elected to the U.S. Senate in 1972 when he was 29 years old..
The fertile land in Egypt is along the Nile River, called the Nile Valley and the Nile Delta. When the Nile flooded each year, it deposited fertile muds in the valley and delta. The mud was rich and fertile and used to grow wheat and raise cattle. Farming methods included digging irrigation channels from the Nile River and using animal power to raise the irrigated waters.
Answer:
Explanation:
Epidemiologic research helps us to know the certain number of people that has a disease or disorder , rate at which the numbers are changing and also how the disease or disorder affects the econmy.
The three components of cycle of epidemiologic research are theory, hypothesis and variables.
The cycle of epidemiologic research guides the researchers in searching of etiology of diseases.
Hypothesis.........gives an idea on the fact which has to be criticized.......teenage binge drinking
Variables...........include operationalization of the hypothesis.............survey of teens on environmental effect on binge drinking in teens.
Theory ...............includes deep study based on the variables........% of teens influenced /not influenced by environment
The system of mass reproduction in manufacturing developed during the Gilded age. Hope this helped you.
