Which processes bring about changes in the temperature and/or salinity of surface waters?

Which of the following statements best describes environmental laws in latin america?

The last photo u wonder what is this telling me to do?

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.