What is presobyopia?

Is extinct a common noun? What is a partly burnt fuel also known as? What tools witches did use? What fruit did stone age people eat? What was the first vertebrates? What did the great plains houses look like? Where is the apple tree in poptropica Mythology Island? What dangers did the mesolithic people face? What happenes when you slove the message in bones in mythology island? What were similar gods to Demeter? Tools and weapons in the ice age? Who invented the hoof pick? What is the name of the mamoth in ice age? Is peat a biomass or fossil? Where was the groung sloth remains found? What tools to use for a flood? What is name for the ancient supercontinent that was once one giant land mass? Are there fuels which are not fossils fuels? Who were the mischievous cave-dwelling creatures in Norse mythology? Do paleontologist get paid?