High density of people in Hong Kong, New york City, all big citys in India like Delhi or calcuta
Radio waves are electromagnetic waves and as such travel at the speed of light. Waves emitted a century ago would be 100 hundred light years away. A light year is the distance light travels in one year. In one year light travels about 5.9 trillion miles. therefore the waves traveled about 590 trillion miles in a century.
Answer:
A
Explanation:
All Americans should have the highest quality of life in the world.I Think answer is A.