How many chemical reactions are possible regarding the formation of carbonic acid and the dissolving of calcite?
a. 2
b. 3
c. 23
d. 10

Due to its high humidity, the south often experiences severe storms with heavy rains called cyclones ,hurricanes, monsoons, tornadoes

The inner planets mercury, venus, earth, and mars were formed by

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