Most of the world's earthquakes occur around:

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.

Sean has a bag with 15 marbles. six of the marbles are red and 9 are blue. if sean draws one marble from the bag the probability of drawing a red marble is

What south american countries have sufficient energy resources to meet their needs