What is sustainable development? How can you suggest your community for sustainable development?

What makes a personal exceptionality/non-exceptionality

What is the mostly tropical region in asia

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.