The american government is a federal system. this means that:
a. powers are shared between state and federal governments.
b. citizens elect representatives to vote rather than voting directly.
c. the federal government is divided into three branches.
d. the legislative branch consists of an upper and lower house.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts

i think the answer is d