Find out from your grandparents or other elders ………… (a) how did they go to school? (b) how did they get water for their daily needs when they were young ? (c) what means of entertainment did they use ? Compare the above answers with how you do these takes now. Is there a difference? If yes, in which case more energy from external sources is consumed?

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?