Based on the map above above, how do you think North America and Europe were positioned relative to each other 50,000,000 years ago? Justify your answer.

Arid and semiarid subcategories are part of which climate

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.

Fertility and mortality rates are higher in more developed nations.