Niagara Falls Were Formed ________

question 85

Multiple Choice

Niagara Falls were formed ________.

• A) by humans as a result of the damming of the St. Lawrence River
• B) during Precambrian time approximately a billion years ago
• C) so long ago that the river's knickpoint is now gone
• D) after the retreat of the Pleistocene ice sheets a few thousand years ago
• E) after a series of spectacular earthquakes which are still helping the falls evolve

---

Definitions:

Small Groups

Collections of individuals who interact with each other, usually face-to-face, in a way that each person influences and is influenced by each other.

Likert Scale

A technique for measuring attitudes that asks a respondent to indicate the extent to which he or she agrees with each of a series of statements about an object.

Reliability

The degree to which a measuring instrument produces the same results each time it is employed under a set of specified conditions.

Different Participants

Refers to the diverse members or individuals who take part in a study, survey, or any given activity or process.