The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is
Rutherford's scattering experiment proved the presence of
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy state, they emit light, which we can observe in
Blood pressure may be increased by the excessive secretion of
The concept of 'Green House Gases' was postulated by
The Particulate Matter (PM-10) exhaled from the polluted atmosphere is often filtered out during the process of
The ordinary and maximum tolerance limit of sound by human being is
According to Marx, the source of value is
The pollutants which move downward with percolating groundwater are called
Lungs are located in the
Transcription means synthesis of
Hydrochloric acid is secreted by the cells lining the
Emulsification is
Which one of the following is the smallest endocrine gland in human body ?
Yellow spots on citrus leaves is due to the deficiency of: