Question

This graph shows life expectancy in the United States. Which factor best explains why the graph changes from 1990 to 2010? New technology protects soldiers from risky reconnaissance missions. New technology allows farmers to grow genetically modified crops. New technology allows us to find and use new energy sources. New technology has improved medical imaging and surgery.

Answer 1

The factor that best explains life expectancy in the United States between the period of 1990 to 2010 is that new technology has improved medical imaging and surgery.

Further Explanation:-

Over the last 3 years, there have been great advances in the field of life expectancy in the United States. There have been major improvements in the sector related to major childhood infections as well as diseases and in the field of nutrition, hygiene as well as Medical care. This brought an increase in life expectancy of around 4 years. There has been the advancement of medical technology and especially in the field of diseases which are related to heart and strokes. During the early 1990s, there were accomplishments of high-income countries with regards to improvements in life expectancy and because of that, there was a considerable disagreement which was among gerontologists as well as demographers as they were unsure of what the future might hold for them. During the initial period of the 20th century, a significant rise was seen in the life expectancy at birth which was as a consequence with regards to prevention and control of childhood disease and the gains in life expectancy above the age of 65 were known to be more modest.  

Learn more;

1. what caused great Britain and France to declare war on Germany in 1939?

brainly.com/question/1150550

2. How did John Quincy Adams treat native Americans

brainly.com/question/10186448

Answer details:

Grade – High School

Subject – Technology

Chapter – Life Expectancy

Keywords – Life Expectancy, Major, Disease, Gains, Significant, Accomplishment, Technology, Medical, Disagreement, Demographers, Strokes.  

Answer 2

The correct answer is - New technology has improved medical imaging and surgery.

The technology is developing very rapidly, and every year it makes big strides forward, and this includes the medical field as well. Pretty much everything in the medical field has been significantly improved, like the medical imaging and the surgeries, and that is saving millions of lives each year.

Because the medical field has improved so much, the people are able to live longer, thus the life expectancy is growing, and as the technology improves in the future, it will grow even further.