Rare earth metals are not often found in big amounts on Earth. Instead, they're spread out thinly in the Earth's crust, making them hard to get. Once we use them up, they're gone forever. What's another energy source that's similar, where once we use it all up, it's gone?(1 point)
Responses
Coal
Coal
Geothermal
Geothermal
Wind
Wind
Solar
1 answer
Solar