Discover the enchanting Waitomo Glowworm Caves of New Zealand

The Waitomo Glow Worm Caves in New Zealand are home to about 30,000 Arachnocampa luminosa glow worms. These worms create silk nests and use bioluminescent threads to attract prey. The glow is a result of a chemical reaction with oxygen. The caves provide an ideal dark and damp environment for the glow worms. The name 'Waitomo' comes from Maori words meaning 'water' and 'hole'. Visiting these caves offers an unforgettable experience.

What is the process by which glow worms create their light?

Explain the significance of the dark and damp environment for the glow worms.