Select the correct answer.
Ryan attends a seminar on environmental conservation, and afterward decides to contribute to the conservation of the environment. What can Ryan
do to achieve his objective?
O A.
use his own car for traveling instead of using public transport
OB.
buy only imported products to be assured of good quality
OC. use a compost pile to dispose of food wastes effectively
D.
encourage the use of chemical fertilizers to increase agricultural productivity