we know that strong acids are those which releases hydronium ions at a very fast rate when dissolved in water as compared to weak acids . but i want to know how to identify whether an acid is strong or weak ? is there any formula from which we can find the strength of an acid i.e. whether an acid is strong or weak ?

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?