How firefly glow in dark?

Chemiluminescence is a phenomenon in which on element glows in dark when exposed to moisture. Which element of 15^(th) group shows this phenomenon ?

Phosphrous undergoes slow combustion and glows in dark. The process is called

Why do fire flies glow at night?

You discovered a novel eukaryotic organism that glows in the dark. You believe this trait is due to a single gene, and you wish to clone the gene. Which of the following strategies is most likely to be successful ?

Seedlings grown in darkness

Hormone produced more in dark is

Hydrogen can react with the following even in dark:

In an experiment the gene of bioluminescence from firefly has been successfully transferred into a plant as a result of which it started to glow. In the terminology of the molecular genetics, the plant is called

The diagram in Fig. shows the electrical system of a car to operate the two head lights and two rear lights by a switch. shows a connection to the body of the car. The two rear lights as connected in diagram glow faintly. Why do they glow faintly? How should they be connected to glow brightly ? Show by a separate diagram.

Explain how natural selection operates in nature by taking an example of white winged and dark winged moths of England.