A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance S1 in the first 10 seconds and distance S2 in the next 10 seconds, then A. S2=S1 B. S2=2S1 C. S2=3S1 D. S2=4S1

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?