2. What were some of the problems plaguing America's cities at this time?

Explanation:

Industrial expansion and population growth radically changed the face of the nation's cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace. ... Even today, many neighborhoods or sections of some of the great cities in the United States reflect those ethnic heritages.

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Industrial expansion and population growth radically changed the face of the nation's cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace.

Explanation:

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

what is shown in the image?

eukaryote

chloroplast

mitochondrion

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