By what year does India aim to achieve debris-free space missions as declared by ISRO?
What defines a 'Superbug'?
Identify the gas that is not considered a permanent part of the Earth's atmosphere.
On which day does the difference between day and night lengths reach its maximum?
Which principle allows chalk to write on a blackboard?
What does a Venturimeter measure?
Who predicted the existence of the plunging region around black holes?
Which medicinal plant is botanically named Cinchona officinalis?
How often do ocean tides occur in a single day due to the gravitational pull of the sun and moon?
How long does it take for sunlight to travel from the Sun to Earth?
