With respect to air,water,and material resources,which of the following is true?
A)a leaf is a closed system.
B)a leaf is an open system.
C)a leaf is an open system in terms of air,but closed in terms of material resources.
D)a leaf is an open system in terms of water,but closed in terms of energy resources.
E)a leaf does not represent a system.

Question

Quizplus · Accepted Answer

A leaf is an open system because it exchanges matter and energy with its surroundings. It absorbs carbon dioxide and water from the air, and uses energy from sunlight to produce glucose and oxygen through photosynthesis. It also releases water vapor and oxygen into the air through transpiration. Therefore, a leaf is not a closed system.

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