Discuss two useful applications of greenhouse effect.
Two useful applications of the greenhouse effect are:
1. Growing vegetables and flowers in snow-bound regions: Sheds using glass walls are built which allow smaller wavelength of solar heat radiations to pass into the shed but does not allow the longer wavelength of heat radiations to pass out during the night. This keeps the shed reasonably warm for flowers and vegetables to grow.
2. Use of glass in keeping homes warm: In cold countries, the glass windows and doors allow the smaller wavelength of heat radiations of solar energy to pass into the rooms but do not allow a longer wavelength of heat radiations to pass out. Thus, the greenhouse effect takes place and rooms keep reasonably warm.