Answer :
A
Explanation:
The purpose of Earth’s spheres is to facilitate the movement and cycling of matter through ecosystems. Let’s break down the options:A. They work together as open systems to cycle matter through ecosystems.B. They work independently as closed systems to cycle matter through ecosystems.C. They work together as open systems to move matter to living and nonliving parts of Earth.D. They work independently as closed systems to move nutrients to living and nonliving parts of Earth.Now, let’s analyze each option:A. This option suggests that Earth’s spheres collaborate as open systems to cycle matter through ecosystems, which aligns with the interconnected nature of Earth’s systems.B. This option proposes that Earth’s spheres operate independently as closed systems to cycle matter through ecosystems, which doesn’t accurately represent the interconnectedness of Earth’s systems.C. This option indicates that Earth’s spheres work together as open systems to move matter to both living and nonliving parts of Earth, which is consistent with the interconnected nature of Earth’s systems.D. This option states that Earth’s spheres function independently as closed systems to move nutrients to living and nonliving parts of Earth, which doesn’t accurately reflect the interconnectedness of Earth’s systems.Based on the analysis, the statement that best describes the purpose of Earth’s spheres is:A. They work together as open systems to cycle matter through ecosystems.
