According to the Big Bang theory when did the universe form, science homework help

Assignment 12

Earth’s Evolution Through Geologic Time

Questions to Answer:

1. According to the Big Bang theory when did the universe form?
2. When did our solar system and Earth form?
3. What supercontinent existed approximately 1.1 billion years ago and whatsupercontinent existed approximately 200 million years ago?
4. What fossils are evidence of the cyanobacteria from 3.5 billion years ago that caused the gradual rise in oxygen in the atmosphere?
5. Briefly summarize the most widely accepted hypothesis for the extinction of the dinosaurs at the end of the Mesozoic Era?