They study landforms and its caracteristics such as elevation, slope, orientation, stratification,<span> rock exposure, and soil type because can be a mineral deposits or can give some information about fossils. </span>
Answer:
Baby boomers and Generation X
Explanation:
Pollution started in the 1950's through 1970's
Boomers where born in 1946-1964
Generation X where born in 1965-1979
Also The Silent Generation helped start the idea of pollution, but generations after that continued to pollute and that's when the environment went down hill.
United States have over 500 million people living
Can you be more specific thanks