Which kind of material would be prone to liquefaction during an earthquake?
a. water-saturated sand
b. dry compacted clay
c. sedimentary rock with horizontal layering
d. volcanic rock that is very porous?

How has the geography of india made it difficult for its people to expand before modern technology?

The oil and gas found in the middle east are regulated by a. organization of petroleum exporting countries b. southwestern asian oil refineries c. north atlantic treaty organization

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion