Answer: d. Electromagnetic wave
Explanation:
Light is an electromagnetic wave, no matter is wavelength or color.
In this sense, the main characteristic of this type of wave is that it can propagate trhough vacumm, it is not necessary a medium. In addition, electromagnetic waves are transversal waves, this means the electric field oscillates in all normal directions to the direction of wave propagation.
: You could make slight changes to the process or consider wheather the experiment was carried out correctly
In a stronger gravitational field a given mass will have a larger weight.
Energy can be changed from one form to another, but it cannot be created or destroyed. ... This principle is referred to as the first law of thermodynamics or the law of energy conservation. The law applies to all systems both large and small, and, again, it states that energy cannot be created or destroyed.
When you compare all organisms around us, even the smallest ones, you see that they have Life; You could even see this as a trend of some sort.
