Flakes of brick are they mechanical or chemical and what is a description of location

Give the examples of monera. no wrong answer. don't answer of you don't know.

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau

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