What did researchers observe about silicon that led them to start using it to develop solar cells?(1 point)%0D%0AResponses%0D%0A%0D%0AIt was made of a single crystal.%0D%0AIt was made of a single crystal.%0D%0A%0D%0AIt conducted electricity.%0D%0AIt conducted electricity.%0D%0A%0D%0AIt became warm in sunlight.%0D%0AIt became warm in sunlight.%0D%0A%0D%0AIt melted at low temperatures.%0D%0AIt melted at low temperatures.

Answer 1

Researchers observed that silicon conducted electricity, which led them to start using it to develop solar cells.