Question: Until recently the Grand Canyon was thought to be about 5-6 million years old. Recently a scientist gathered data and wrote a paper for a scientific journal that indicated the canyon is about 17 million years old. Before this new information about the canyon is accepted, which of these needs to occur?
Choices:
The scientist needs to publish additional papers.
The scientist needs to obtain government support.
Other scientists need to state their beliefs.
Many scientists need to evaluate the data.
Answer: D