One cannot see through fog because A. Fog absorbs light. B. Light is scattered away by the droplets in fog. C. Light suffers total internal reflection at the droplets in fog. D. The refractive index of fog is infinity.

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?