To classify the given options as resources, we must define what a resource is. Resources are entities that can be employed to achieve an objective or satisfy a requirement, often within natural, economic, or educational domains.
Materials, energy, knowledge, and services are all categorized as resources because they can all be applied to meet diverse needs or accomplish specific aims.
Consequently, the correct identification encompasses: (A), (B), (C), and (D)
| List-I (Author) | List-II List-II (Book/Poem) |
| (A) Gary Snyder | (I) Mountains and Rivers Without End |
| (B) Wendell Berry | (II) The Closing Circle |
| (C) Rachel Carson | (III) Silent Spring |
| (D) Barry Commoner | (IV) A Place on Earth |