I can’t see the picture but the answer is to do with refraction of light coming from the part of the child under water.
The light changes direction as it leaves the water and to the eye of the observer the feet of the child look to be higher up than they really are.
Ozone is a molecule because it is made up of three atoms of oxygen.
Answer:
The answer is thermal energy
Explanation:
Explanation:
light waves because the categorised under mechanical waves
Answer:
Explanation
There are two factors that can cause the fusion rate in the sun's core to increase.
1) Rise in the temperature of core:
If the temperature of the sun's core increases then it will increases the nuclear fusion reaction. The nuclear fusion reactions has such a strong dependency on temperature that even a smallest rise in temperature will results in the higher rate of reaction. That is why these reactions happen in the hottest core of the stars.
2) Reduction in the radius of the core:
Density plays a huge role in the nuclear fusion reactions. If the radius of the sun's core decrease then there will be an increase in the density of the core. Thus the gravitational pressure will also increases. In order to resist this increase in pressure the fusion reactions will speed up and their rate becomes higher.