During which eon did the first bacteria appear? (if correct, will vote for brainiest)

Look at the photo i can’t do geography

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island

Explain how earths tilt and revolution around the sun affects weather and climate