Gram molecular mass is: (a). The mass of a molecule expressed in grams. (b). Same as molecular mass where unified mass (u) is replaced by grams. (c). The molar mass of a molecule in grams. (d). Sum of the atomic mass of all atoms of that molecule.

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?