Answer:
It is asking what type of environment was the rock formed in. For example, metamorphic rock and sedimentary rocks are formed at different levels of temperature and pressure. To solve the problem start off with trying to identify the type of rock (igneous,metamorphic, sedimentary,etc.) and then figure out what conditions those rocks form in. I hope this helps! Good luck!
The focus of an earthquake is the point underground where rocks first begin to move. Seismic waves travel outward from the earthquake's focus.
Answer:
340
Explanation:
Given that
The time period in question is 209 years
The magnitude of the first earthquake is 8.5 Mw
The magnitude if the artificially induced earthquake is 5.0 Mw
To solve this question, we'd use the simple relationship of
8.5 * 200 = 5.0 * Y, where
y is the no of artificial earthquakes required ..
Making y subject of the formula, we have
Y = 1700 / 5.0
Y = 340
Therefore, we have 340 smaller earthquakes in the said 200 yrs time period
