An ice cube of volume 0.03 metre cube floats on water. The density of ice and water are 900 kg per metre cube and thousand kg per metre cube. What fraction of the volume of the ice would be in air? What would be the height of the ice cube in air if its total height is 0.2m?

Can you provide the solution with proper explanation?

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?