Which statement best describes a difference between presidential and parliamentary democracies?

a. in a parliamentary democracy, the executive and legislative branches are joined. in a presidential democracy, the two branches are separate.
b. in a presidential democracy, the head of government is a member of the legislature. in a parliamentary government, citizens directly elect the head of government.
c. in a presidential democracy, citizens are able to vote for their legislators. in a parliamentary democracy, citizens are not able to vote for their legislators.
d. in a parliamentary democracy, citizens vote directly for the head of government. in a presidential democracy, citizens do not vote directly for the head of government.

(1) which of these statements best describes the views of nativists in the late 1800s? a)they believed that immigrants were inferior to individuals born in the united states. b)they believed that more people should immigrate to the united states and assimilate into american culture. c)they believed that no one should be allowed to immigrate to the united states. d)they believed that immigrants had a responsibility to bring their own cultures to the united states. (2)which of the following best describes tenements in new york city in the early 1900s? a) crowded and unsanitary apartment buildings where two-thirds of the city's population lived b) crowded and unsanitary apartment buildings where a small portion of the city's population lived c) dark and crowded homes outside the city where the majority of city workers lived d) dark and crowded homes outside the city where immigrants lived for a short time after arriving in america 3) during the 1800s, nativists promoted the idea that immigrants contributed to unemployment a) taking jobs back to their native countries. b) blocking american workers from applying for jobs. c) competing for jobs that they believed should go to people born in america. d) forcing or intimidating employers into hiring them. 4) which law required immigrants to be able to read and write? a) the chinese exclusion act b) the immigration act of 1917 c) the emergency quota act d) the johnson-reed immigration act

What impact did new technologies in the assembly and manufacturing have on the auto industry in the 1920s

Space is not completely empty. there are small particles in space. what happens when these particles come together?