The statement that provides support for the choice in Part A is option C: "The biosphere is made of all life on Earth and its interactions with the environment, and an ecosystem is made of a community and its physical environment."
Step-by-step explanation:
1. **Biosphere Definition:** The biosphere encompasses all life on Earth and its interactions with the environment. This aligns with option C, supporting the understanding of the biosphere.
2. Ecosystem Definition: An ecosystem includes a community of living organisms interacting with each other and their physical environment. This corresponds to the definition provided in option C, reinforcing the choice.
While option C aligns with the definitions of both the biosphere and ecosystem, the other options contain inaccuracies or misalignments with the given definitions, making option C the most suitable statement to support the choice in Part A.