Question 6 of 10
Which activity is an example of a comparative investigation?
O A. Collecting and analyzing data about water quality in two different
wetland areas
O B. Calculating the size of a bird population living in a wetland
O C. Testing the effects of pesticides on the growth rates of fish native
to a wetland
D. Observing and recording the nesting habits of a species of bird
living in a wetland
