The prefix for Bio is life so a biologist studies life of living organisms
The prefix for Geo is earth so it would be the study of earth.
What is in common would be animals and plants
what is different is an Geologist studies only earth Biologist studies everything living. I hope this was helpful and I didn't confuse you.
The closer to the equator, the hotter the climate will be.
Because many fuels are fossil fuels they take millions of years to form and the known reserves are being used much faster than the new ones being made