Calculate the electricity bill amount for a month of 31 days, if the following devices are used as specified. (A) 3 bulbs of 40W for 6 hours (B) 4 tube lights of 50W for 8 hours (C) A T.V. of 120W for 6 hours Given the rate of electricity is Rs. 2.50 per unit.​

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?