Tag: science & technology

Questions Related to science & technology

The presence of a black hole cannot be seen visually because even light cannot escape from its strong gravitational pull.

  1. True

  2. False


Correct Option: A

What is black when you buy it, red when you use it, and grey when you throw it away?

  1. wood

  2. iron

  3. Charcoal

  4. fuel


Correct Option: C