Im confused on this question. ''In conclusion, Bill Nye states the "As more and more species disappeared, it is harder and harder to keep an ecosystem in balance because we don't know what?''. I have no idea what the answer is please help

hope it mark me as brainlieast.

not sure if this is what you'r looking for eubacteria and archaebacteria

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

it's c.us forest service