One vessei:with ice of 10 gr at O°C
and another similar vessel with water
at 100 gm atO°C are taken and hung in
a room .after 15 min .the temperature
.' of water. is raised to .2°C. The time
, required for the 'ice tobe converted
completly into water is ?

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?