Experiments are different than the other research methods. Researchers can manipulate the environment in an experiment, limited outside influences to ensure the independent variable will be the only changing item.
Why is this important? What does it allow researchers to do?

The boy and the wolf by james baldwin one day word came that a savage wolf had been seen in the forest. "how i should like to meet that wolf," said little gilbert. he was only seven years old, but now all his thoughts were about the savage beast. "shall we take a walk this morning? " asked his mother. "oh, yes! " said gilbert. "perhaps we may see that wolf among the trees. but don't be afraid." his mother smiled, for she felt quite sure that there was no danger. what point of view does the author use in this selection?

Read the passage from an argumentative essay. many endangered species are currently threatened by climate change. there are some laws already in place, but are they effective enough? anyone with a conscience knows that these creatures deserve the chance to survive without outside threats impeding their survival. i suppose this is a tough decision for lawmakers, but i hope they choose wisely. which statement best evaluates the claim in the passage?

According to the police officer, the car accident could not have been avoided.