With respect to air,water,and material resources,which of the following is true?
A)A forest is a closed system.
B)A forest is an open system.
C)A forest is an open system in terms of air,but closed in terms of material resources.
D)A forest is an open system in terms of water,but closed in terms of energy resources.
E)A forest cannot be considered either on open or closed system.

Question

Quizplus · Accepted Answer

A forest is an open system because it exchanges matter and energy with its surroundings. It takes in carbon dioxide and releases oxygen during photosynthesis, and absorbs water and nutrients from the soil. It also releases water vapor and releases carbon dioxide during respiration and decomposition of dead plants and animals. Therefore, it is not a closed system.

With Respect to Air,water,and Material Resources,which of the Following Is