Through an understanding of how natural forces affect the environment, what can Earth scientists do? Choose the correct answer.

change human nature

prevent natural disasters

change the course of history

better predict natural disasters

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