Physics
Night photography and photopraphy in mist and fog are possible using

Ultra-violet radiation
Gamma radiation
Infra-red radiation
Microwave radiation

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Physics
Plants are dried up in winter due to frost because

There is mechanical loss of tissues and drought condition prevails
Photosynthesis does not take place at such low temperature
Evaporation does not take place
Respiration does not take place at low temperature

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