Some plants increase in height due to changes in specialized regions of cells in the tips of their branches. the processes that result in these changes include meiosis, cell growth and cloning mitosis, zygote formation and cloning meiosis, gamete formation and differentiation mitosis, cell growth and differentiation

The correct answer is : Mitosis, cell growth and differentiation.

Plants increase in height due to the activity of meristem or meristematic tissue. Meristems are tissues which have capacity to divide throughout their life. Meristems are located in the apical meristems, shoot apex and root apex. Meristems divide through mitosis. The daughter cells  enlarge, stretch and differentiate into other types of cells as they mature. This causes some plants to increase in height.

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.