In 1997 there were 14 large apartment buildings in calston, tx. by 2010 there were 53 large apartment buildings. what is the rate of change in the number of apartments buildings from 1997 to 2010? a. 1/39 years per building b. 53/13 buildings per year c. 3 buildings per year d. 14 buildings per month

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste