What happened at the end of the mesozoic era but did not happen at the end of the paleozoic era?

The maps below show the middle east. which best explains how the green areas depicted in the image on the left are reflected in the population map on the right? populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.

Name three new weapons that changed how ww! was fought and how?

The three estates social system in france ensured balanced representation of all people and treated each social group fairly. true or false ? why?