1. Which of the following represents the correct sequence of Eras in the Geologic time
scale? Oldest to youngest
2. The change in frequency of a sound wave caused by movement of its source relative to an
observer is known as th
Video Quiz: 18 Metamorphic Rocks
Q1. Why are there so many different types of metamorphic rock?
A. There are many different sedimentary and igneous rocks available to metamorphose.
Q2. How did the snowball garnets shown in the film form?
A. directed sheer
Video Quiz: 10 Geologic Time
Question 1 How old have bontanists discovered some trees to be?
Answer: 8000 years
Question 2 What amazing North American natual feature was used in the video to
demonstrate the concept of uniformitarism?
Answer: Grand Canyon,