Which of the following is composed of weathered rocks and decomposed organic material from dead plants an animals?

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

What type of competition exsist between two species. turtles and fish

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d