Which of the following was one result of the green revolution?
a. the protection of species diversity
b. an increased reliance on polyculture agriculture
c. the conservation of topsoil
d. an increase in the yield of crops for less-developed countries

Which of these played the biggest role in increased urbanization in the late 1800s? a) transportation improved b) the military was stronger c) no one was farming anymore d) steam power was discovered

American reaction to the 9/11 tragedy can be characterized as patriotism. a. true b. false

Explain the reasons for u.s. neutrality during the 1920s and 1930s. how did ideas about neutrality change during the period from the end of world war i to the passage of the lend-lease act? be sure to include any events, terms, or people that may support your response.