The ultimate source of heat in the process of global warming is a. the burning of fossil fuels
b. carbon dioxide
C. the sun
d. greenhouse gases

Where is the world’s shortest commercial runway?

What is a small water source like a stream or brook?

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