Answer:
a, b, c.
Explanation:
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Successful: Medicare and Medicaid and the National Endowment for the Arts
Unsuccessful: Model Cities Program, Office of Economic Opportunity
Many of the programs were unsuccessful due to the cost of the Vietnam War and not because they were bad ideas.
Answer:
B. The growth of the railroads increased the demand for natural resources.
Explanation:
Railroad transportation changed the way American people traded. For instance, agriculture products were transported easily throughout the country.
Humans created an imbalance in nature during the dust bowl by killing the Jack Rabbits.
Explanation:
in 1930 the Farmers problem was DUST BOWL PEST. The main problem was alteration in ECOLOGY make way for the pest called JACK RABBIT. It breed at a amazing rate . so more rabbits were formed.
The predators of rabbit were also moved to different place in search of water. so JACK RABBIT population surged more and ruined the crops of farmers and grass. so farmers kill rabbit.
After the rabbits GRASSHOPPERS developed enormously and devastated the fields.The people then sprayed pesticides and controlled them after this another pest developed thus resulting in the intervention of humans life and ecological cycle disturbed.
