Answer: The answer is D). Garbage Purchase Program
Explanation: Lack of budget for a standard recycling plant lead Curitiba to initiate the Garbage Exchange Programme where complementary currencies are used to reward people for separating their organic and non-organic recyclable wastes and bringing them to waste stations, where they can be exchanged for bus tickets, food, and school-books.
Answer:
This study was an experiment.
Explanation:
An experiment demonstrated to compare the behavior of the two groups, the one who watched the violent film and the the one who did not. the research was made to figure out the impact of violence in human development.