প্রশ্ন সংশোধন করুন
প্রশ্ন:
'Drying' food 'by means' of solar energy 'is ancient' process 'applied' wherever food and climatic conditions make it possible. 'No Error.'
'Drying' food 'by means' of solar energy 'is ancient' process 'applied' wherever food and climatic conditions make it possible. 'No Error.'