Answer:
am sorry I don't know this
Answer:
Without an oxygen atmosphere very few things could live on the early Earth. Anaerobic bacteria were probably the first living things on Earth. The early Earth had no oceans and was frequently hit with meteorites and asteroids.
Explanation:
The anwser should be B. Nonrenewable resources generally have a higher impact on the environmental than renewable resources.
Answer:
The ecosystem will change, maybe, there might be some problems, like some animals will start to die by being food for the alien species, or it might progress more.
Explanation:
