RRB JE Mechanical Question Paper 2014 (Set-3) with Answer Key

It is due to the refraction of sunlight as it travels through Earth's atmosphere. ... Refraction of light by these layers can make the sun appear flattened or distorted. Objects closer to the horizon are raised upwards most and the lower limb of the Sun is raised more than the top making it appear oval.

Newton’s third law of motion states that to every action, there is always an equal and opposite reaction.

Swimming is possible on account of Newton’s third law of motion.