- A source of something emits / produces / generates / provides that something
- Using biomass to produce energy is a source of pollution
- Hence, using biomass to produce energy emits pollution

- Using biomass to produce energy emits pollution
- If something emits something else then that something increases the amount of that something else
- So, using biomass to produce energy increases the amount of pollution

- Using biomass to produce energy increases the amount of pollution
- Biomass is a renewable resource
- So, biomass is a kind of renewable resource that increases pollution when used to produce energy

Therefore, biomass is a kind of renewable resource that increases pollution when used to produce energy
[Question]Which of these renewable resources results in an increase in pollution when used to produce energy?
[Context]- A source of something emits / produces / generates / provides that something 
- Biomass is a renewable resource 
- Using biomass to produce energy is a source of pollution 
- If something emits something else then that something increases the amount of that something else