Which of the following is an example of an attempt to improve an environmental problem caused by chemicals?
O A. Shoveling snow off of driveways in the winter
B. Dumping waste into rivers
O C. Removing lead from gasoline to reduce air pollution
D. Adding pesticides to crops so they will grow larger

Well technically there are two correct answers b and d. but for you its probably b in general.good day sir/ma'am : ) (i know not gender)

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

Answers are 1,2,4 its correct on edgenuity.