Across
- 1. relying on turbines, this source of energy releases no pollution and several of these farms are being built off the shore of Long Island
- 4. coming from the heat of the Earth, this is one of the most used forms of renewable energy
- 5. the second most used form of energy in the US (as of 2021), this is a mixture of gaseous hydrocarbons that is the least-polluting fossil fuel
- 8. these sources of energy are replenished faster than we can consume them
Down
- 2. sources of energy that will not be replenished in our lifetimes
- 3. considered the dirtiest form of energy, this has been used to generate electricity for centuries
- 5. one of the lowest polluting forms of nonrenewable energy, this produces radioactive waste that is difficult to dispose of
- 6. relying on energy from the sun, this form of energy is harnessed by panels
- 7. in addition to being a nonrenewable source of energy, this substance is used to make a large variety of products, such as plastic