What will happen if the deer is missing in the food chain given below: Grass → Deer → tiger (a) The population of tigers increases (b) The population of grass increases (c) Tiger will start eating grass (d) The population of tigers decreases and the population of grass increases.

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?