Question : Humidity is measured by Which of the following?

Option 1: Lactometer

Option 2: Polarimeter

Option 3: Thermometer

Option 4: Hygrometer

Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".

(Bacteria is) the most common form of life 

(1) Bacteria are

(2) Bacterium are

(3) Bacteria was

(4) No Improvement

Option 1: (1)

Option 2: (2)

Option 3: (3)

Option 4: (4)

Question : Which instrument is used for photographing the Sun?

Option 1: Galvanometer

Option 2: Potentiometer

Option 3: Spectrophotometer

Option 4: Spectroheliograph

Question : Which apparatus is used to measure the intensity of light?

Option 1: Lux Meter

Option 2: Calorimeter

Option 3: Anemometer

Option 4: Altimeter

Question : The maximum fixation of solar energy is done by

Option 1: Bacteria

Option 2: Protozoa

Option 3: Fungi

Option 4: Green plants