In your own words, describe the first and second laws of thermodynamics.
explain how these scientific laws apply to energy use, energy conversions, and the need for energy efficiency.

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