Question : An instrument used to measure the density of milk is :

Option 1: Lactometer

Option 2: Barometer

Option 3: Calorimeter

Option 4: Polarimeter

Question : The instrument used to measure pressure :

Option 1: anemometer

Option 2: aneroid barometer

Option 3: hygrometer

Option 4: thermometer

Question : Hypertension is the term used for

Option 1: increase in heart rate

Option 2: decrease in heart rate

Option 3: decrease in blood pressure

Option 4: increase in blood pressure

Question : The water of the coconut is

Option 1: liquid nucellus

Option 2: liquid mesocarp

Option 3: liquid endocarp

Option 4: degenerated liquid endosperm

Question : The surface tension of water on adding detergent to it:

Option 1: increases

Option 2: decreases

Option 3: no change

Option 4: becomes zero