Eco-system services are the benefits people get from nature, and ecologists sort them into a fixed set of categories. Test each option against that set.
- Regulating: a forest cleans the air, stores carbon, holds soil in place, and slows down flood water. These are control functions on the environment, which is what a regulating service means, so this option is correct.
- Provisioning: a forest is a direct source of wood, food, fibre, and water for the people living near and around it. Direct physical goods define a provisioning service, so this option is correct.
- Cultural: a forest gives people a place to walk, worship, or simply enjoy nature, and it often carries heritage value. Non-material, experience-based benefits define a cultural service, so this option is correct.
- Geo-political: this word is about borders, states, and international relations. It is not an ecological output of a forest at all, so this option does not belong in the answer.
Three of the four listed items match the recognised categories of eco-system services, and only the geo-political option is unrelated to ecology.
Let's summarize:
- Forests give regulating, provisioning, and cultural services (and also supporting services, not listed here).
- Geo-political is a political term, not an ecological one.
So the correct options are Regulating, Provisioning, and Cultural, that is, 1, 2, and 3.