Base your answer to the question on the information below, and on your knowledge of biology. Before conducting an experiment, two students gathered information about the effect of greenhouse gases on global warming. Student A found information in a
newspaper article. Student B found information in several peer-reviewed scientific journals and on three websites.
After gathering the information, the students presented the information to their class. The class gave the students suggestions about how to continue with their
experiment. How does this step benefit the investigation?
Feedback from the class will help them design a better experiment
2
Feedback creates confusion, and will complicate the investigation
3
The students' investigation will be unaffected because the class is not carrying out the experiment
4
The investigation will be unchanged because students can use information only from published sources to design the experiment.