4
QuizMultiple Choice
The Obama Presidency — Unit test
Question 4 of 25 • NY-US History and Government Term 2 Hillcrest
This graph shows life expectancy in the United States.Which factor best explains why the graph changes from 1990 to 2010?
Answer
A
New technology protects soldiers from risky reconnaissance missions.B
New technology allows farmers to grow genetically modified crops.C
New technology allows us to find and use new energy sources.D
New technology has improved medical imaging and surgery.