High levels of cholesterol can first lead directly to
a. strokes
b. arteriosclerosis
c. heart attacks
d. heart failure

When the earth was formed and cooled, why did nickel and iron end up in the center of the earth while basalt and granite ended up in the outer layers

Stage in which a typical star has completely stopped fusion

  the mississippians were considered to be  horticulturalists, which means they were