Answer: Option (a) is the correct answer.
Explanation:
A fuel which can be renewed and that can produce energy is known as biomass energy.
Manure is a cow dung and can be renewed as helps in the fertility of soil.
Garbage helps in producing energy by generating methane gas, it can be used to convert chemical energy into thermal energy etc.
Lumber is also a biomass as it also produces energy and can be renewed.
Whereas wind is also used to produce energy but it cannot be renewed.
Thus, we can conclude that out of the given options, wind is not a biomass energy source.
