Why does genetic variation increase the chance that some individuals in a population will survive? Genetically diverse populations display high phenotypic variation. If changing environmental conditions favor a particular phenotype there is a good chance that genetically diverse population will have some individuals who have that advantageous phenotype.
As well, the candles produce large particles in their smoke and there have been concerns about how safe it is to regularly breathe in this smoke. Mosquito coils: Like citronella candles, mosquito coils produce a smoke that confuses mosquitoes. The coils contain the insecticide allethrin.
A burning candle produces a luminous flame. What is the fuel for a burning candle? Why is the flame luminous? The fuel for candles is the wax as well as the oxygen. The candle experiences this type of flame because there is an insufficient amount of oxygen being burned.