Five point code of conduct for visitors to the kruger national park

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.

Hey! can anyone me out with my homework? it will be very much appreciated! and !

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