What can rock fossils and original remains show about earth’s past?

How many years is a term in the senate

What factors of japan’s geography make it necessary for it to import so many goods?

Rectangle qrst is shown. angle qrt is congruent to angle str, and angle str is complementary to angle qtr. which statement is true about angles qrt and qtr? they are congruent. they are complementary. they are supplementary. they are right angle