Final answer:
Biomass energy is a common method to obtain renewable energy, where organic materials such as crops or wood are used to generate heat or electricity.
Step-by-step explanation:
One common method to obtain renewable energy is to grow it on farms. This is known as biomass energy, where organic materials such as crops, wood, or animal waste are used to generate heat or electricity. For example, corn can be converted into ethanol, while wood can be burned for heat or used to produce biomass pellets.
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