If ‘+’ means ‘−‘, ‘−‘ means ‘×’,

Kindly Study the following questions carefully and choose the right answer.

Which vitamin helps in improving night vision?

The instrument used to measure the speed of the wind is –

Which of the following is not a subatomic particle?

A metal ball of volume 0.02 m³ is immersed fully in water. Find buoyant force. (Take g=10 m/s2, ρ = 1000 kg/m3)

An element "X", having atomic number 16. gains two electrons to form an anion X. What will be the atomic

number of 'X' in the anion?

Stereo was invented by                .

Which of the following does not show heterotrophic nutrition?

Which one of the following is a natural substitute for common sugar?

The part of leaf by which it is attached to the stem is called ______.