How did the literature of untied states begin to change in the late 1800s?

There is no map, maybe give the link, it may be b

Idk bro sorry  lava is hotter then magma but im  not sure about it alll

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.

Ais the answerhope it