What is the distance in km between two cities that are 7.5 cm apart

The Richter scale is a log scale. Each magnitude higher earthquake shakes ten times more than the one below it. So a M3 shakes ten times as much as a M2 earthquake. A M4 shakes 100 times as much as a M2. And a M5 shakes 1000 times as much as a M2.

After an earthquake, which type of seismic wave arrives first at a seismometer?

How was propaganda set up to create a hatred for the Tutsi and their way of life?

The answer is south africa

6x + 9 = 18x - 3x + 81

Which phrases describe air pressure

Write a 125-word essay about the pollution of North America's atmosphere. In your essay, include: The causes Things people can do to reduce pollution Things the government can do to reduce pollution

What type of rock forms when heat and pressure change the structure, texture, or composition of sedimentary rock?

If you could find a bathtub big enough for saturn the planet would:

What was the cause of the devastating tsunami in Southeast Asia in 2004? The Good Friday Earthquake Monsoon rains The Sumatra-Andaman earthquake The Kamchatka Earthquake