Answer:
The correct answer is letter "A": Binocular disparity.
Explanation:
Binocular disparity refers to the slight difference in the caption of an image between the left and the right eye because of the eyes' horizontal separation -also known as parallax.
In the case, Akeelah extended an arm and then one finger of the same arm. After focusing on the finger, she closes and opens both her left and right eye. As a result, she perceives a little different between the sight of one eye and the other.
The answer is D. Ethanol.
This represents the source of research ideas called classroom lecture.
There are several sources which can inspire and help someone to develop a research question. Some of them are theory, everyday occurrence, serendipity and past research. In this case, Whitney was taught about the bystander effect in her social psychology course and she was inspired to undertake an undergraduate research project on this subject.
C) Textiles industry was the first mechanized industry.
