What is the Richter scale, how much stronger is a 5.0 earthquake compared to a 3.0?

One of the main reasons the united states occupied japan after world war ii was that

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.

The action of eventually a low island to form. a. wind b. waves c. volcanoes d. tectonic plates