How did canals and roads help the United States grow?

Canals and roads were helpful in transportation, population growth, and economic growth.

Explanation:

Roads could be constructed across longer distances to let people far apart reach each other, and it also allowed for transportation to become more efficient. Canals also had the same effect, and when people constantly used these roads, it became a new source of revenue.

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.