Supernova have extremely high temperatures compared to stars like our sun. Which of the following wavelengths of light would you expect only supernova to emit

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

Explain how organisms could be harmed by high levels of salt from roadways?

What was darwins theory of common decent