Question

Northern lights or auroras can be seen within the _____ sub-layer.

Answer 1

Northern lights or auroras can be seen within the ionosphere sub-layer.

Answer 2

The answer is Ionosphere. Northern lights or auroras can be seen within the Ionosphere sub-layer. The ionosphere is the layer of the Earth's atmosphere that contains a large amount of ions and free electrons, it is also able to reflect radio waves, it can also conduct electricity.