Which makes up an ecosystem? A. A community of organisms and nonliving factors in their habitats
B. Several species of organisms that are similar in appearance
C. A group of species and the plants that they interact with
D. Multiple populations of animals and the plants in their environment

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

Who examines and coordinates the cleanup of polluted sites?

Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unit‑factor slots.