What evidence of a large glacial lake is there in northeastern ontario

How can you use a maps legend to plan your travel

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

How does sea floor spreading relate to supercontinents?