an increase in the time needed for transporting wood. safer work environments for loggers. a change in the chemical and physical makeup of land and water. a decrease in the cost of wood and paper products.
I gave my students this multiple choice question: Technological advancements in the logging industry have had both negative and positive effects on forest ecosystems. The most likely negative effect of more efficient logging techniques is

Only one answer is correct among these 4 choices:
- an increase in the time needed for transporting wood.
- safer work environments for loggers.
- a change in the chemical and physical makeup of land and water.
- a decrease in the cost of wood and paper products.

Could you tell me which one is correct?

a change in the chemical and physical makeup of land and water.