reduces
Increases
Keep the same
None of the above
Scent sprayer is based on
Scientific study of birds is known as
Sea water can be purified by the process of
Sea water is saltier than rain water as
Sea weeds are important source of
Sensitivity of the human eye is max. in the
Setting of plaster of paris involves
Should cars have bumpers that collapse under impact
Silica gel is a
Silver halides are used in photographic plates as they are
