PLEASE HELP ASAP! Human activity has the potential to harm ecosystems and reduce the number of organisms present in those ecosystems. Which statements below correctly describe negative consequences of decreasing the plant and animal population in an area?

Mark all that are correct.

A) As the amount of water pollution increases, water erosion increases and reduces the amount of soil in an area.

B) If the population of pollinating insects is reduced, flower populations may decrease.

C) Pollution that kills bacteria reduces the amount of nitrogen in the soil, thus affecting plant life.

D) When the waterways are removed, wetlands can potentially become flooded.