For the reactions, N_2 + 3H_2 to 2NH_3 and 1/2 N_2 + 3/2 H_2 to NH_3 write down the expression for equilibrium constant K_1 and K_2. How is K_1 related to K_2?

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?