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.
B they are les secure than traditional payments.
Apparently it was built on august 15, 1620
The answer is B. Executive office of the president.
Answer:
The threat to internal validity most likely to account for this change is <u>History</u>.
Explanation:
To understad the threats to internal validity during this research, the element that has to be considerate this case is history. The event in time that occure during the experiment, was the rising of the price of gasoline per gallon. Since the research had to do with determining attitudes toward the use of alternative energy, this event of the rising of the gasoline price, is a factor that may affect the validity of the investigation. Since this can defenetly modify the real position or previews position of the subjects towards the use of alternative energy. This specific aspect definetly changes the pretests done by the researcher.
