By different ways to travel, different clothing, and Airplane testing.
Then there would still be a war in Vietnam
Answer:In the nineteenth century America, people developed stronger alliance to their state or region instead of the whole nation.
Explanation:People developed stronger alliance with their state or region because there was a lot of slavery and many parts of America didn't agree with that or they didn't agree with other rules/customs that were used in the individual state so they only cared about their state, if they agreed with what was happening in their state.
D. Cutting down of the rainforest Deforestation!!
The answer is C. Some powers are expressly given to the federal government under the constitution!!!
