Why do electric field lines not form closed loops? A) It is always directed towards a positive charge from a negative charge B) It is always directed from positive charge to negative charge C) It is always directed away from a negative charge D) It can be in any random direction

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?

Why is water liquid at room temperature?