Renewable energy is energy produced from sourece that do not deplete or can be replenished within a human's life time. The most common examples include wind, solar, geothermal, biomass, and hydroelectric power. This is in contrast to non-renewable sources such as fossil fuels. Most renewable energy is derived direcetly or indirectly from the sun. Sunlight can be captured directly using solar technologies. The sun's heat drives winds, whose energy is captured with turbines. Plants also rely on the sun to grow and their stored energy can be utilized for boienergy. Not all renewable energy sources rely on the sun. For example, geothermal energy utilizes the Earth's internal heat, tidal energy relies on the gravitational pull of the moon, and hydroelctric power relies on the flow of water.
What is renewable energy ?

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a definition of renewable energy. It is essential to identify where in the paragraph this information is provided.

2. **Locating the Definition**: The first line of the paragraph states, "Renewable energy is energy produced from sources that do not deplete or can be replenished within a human's lifetime." This is the key definition we need.

3. **Explaining the Definition**: Renewable energy refers to energy sources that are sustainable and can be used repeatedly without running out. Examples include solar energy, wind energy, and hydroelectric power, which can be replenished naturally within a short time frame.

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