Joseph jogs from one end A to the other end B of a straight 300m road in 2 minutes 30 seconds and turns around and jogs 100m back to point C another 1 minute. What are Joseph’s average speeds and velocities in jogging (a) from A to B (b) from A to C

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?