The aftereffects or damage from an earthquake is measured by a scale.

1. correlation spectrometer
2. richter
3. mercalli intensity
4. moment magnitude

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed

In what three areas is the us leader?

Which of the following situations is most likely to arise when a crowded city is unable to provide its residents with sufficient sanitation?