Question : A fluorescent tube contains__________.

Option 1: Argon vapour

Option 2: Mercury vapour

Option 3: Sodium vapour

Option 4: Neon vapour

Question : Heavy water is made by ______.

Option 1: dissolving salt of heavy metals in distilled water

Option 2: repeated distillation and condensation of water

Option 3: burning Deuterium in oxygen

Option 4: by burning the heavier isotope of Oxygen and Hydrogen

Question : What is measured by the Respirometer?

Option 1: Recipe taste and quality

Option 2: Rate of breathing

Option 3: Evaporation process

Option 4: None of the options is correct

Question : A ______ is used to detect acoustic signals under the water.

Option 1: ammeter

Option 2: hydrophone

Option 3: pyrometer

Option 4: bolometer

Question : What is the term used for pollination by wind?

Option 1: Siciophily

Option 2: Endophily

Option 3: Anemophily

Option 4: Entomophily