In a streamline flow: A. The speed of the particle always remains the same. B. The velocity of the particle always remains the same. C. The kinetic energies of all the particles arriving at a given point are the same. D. The momenta of all the particles arriving at the given point are the same.

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?