Why Some Stones Float: The Science Behind a Surprising Phenomenon At first glance, the idea of a stone floating on water appears to defy common sense. Stones are generally associated with heaviness and sinking. However, scienc…
Interstellar Comment 3I/ATLAS: A Rare Visitor From Beyond Our Solar System The discovery of Interstellar Comet 3I/ATLAS has once again opened a new chapter in humanity’s understanding of the cosmos. After the historic detecti…
Q.1 Which one among the following would expand the most on being heating? (A) Water (B) Air (C) Alcohol (D) Glass Correct Answer (B) Q.2 Which one of the following is a chemical change? (A) Distillation of sea (salty) wate…
Metal and its Compounds 1. Which is the most reactive metal? [BPSC (Pre) 2015] (a) Sodium (b) Calcium (c) Iron (d) Potassium 2. Heaviest metal of the following is made of [BPSC (Pre) 1995] (a) Copper (b) Uranium (c) Aluminium (d…
Section Biology Chapter : Cell Biology Choose the Corret answer from the following 4 options 1. Which one of the following is the principal structural elements of a living cell? (a) Oxygen (b) Hydrogen (c) Carbon (d) Nitrogen …