Multiple Choice
In the context of the Law of Conservation of Mass, which of the following substances is not recycled but rather is lost from ecosystems?
2. Atoms & Elements
Law of Conservation of Mass
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Which of the following components is not recycled within an ecosystem, according to the Law of Conservation of Mass?
A
Carbon
B
Nitrogen
C
Water
D
Energy
Verified step by step guidance1
Understand the Law of Conservation of Mass, which states that mass is neither created nor destroyed in a chemical reaction. This implies that all matter, including elements and compounds, is recycled within an ecosystem.
Identify the components listed in the problem: Carbon, Nitrogen, Water, and Energy.
Recognize that Carbon, Nitrogen, and Water are all forms of matter. According to the Law of Conservation of Mass, these components are recycled within an ecosystem.
Understand that Energy is not a form of matter. Instead, it is transferred and transformed within an ecosystem, often entering as sunlight and leaving as heat.
Conclude that Energy is the component that is not recycled within an ecosystem, as it is not subject to the Law of Conservation of Mass.
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