Do you mind helping me with this?

Rocks that contain crystals that are roughly equal in size and can be identified with the unaided eye are said to exhibit a texture.

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

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.