The abundance of Thorium is more than that of uranium, in nature of course.
It is called <em>refraction</em> and is caused the the clear surface bending the light to make it appear different colors or look like it is bent.
The correct option is A.
In science, model refers to a representation of idea, object or process which is used to describe a phenomenon that can not be directly observed.
In option A, it can be seen that protons that are inside the nucleus of an atom can not be seen with the naked eyes, that is why scientists used models to represent them.
Answer:
After all, "Spring Tides" (peak ocean tides that arise bi-monthly) occur when the Sun, the Moon and the Earth are nearly in a straight line around the times of the New Moon and Full Moon.
Explanation:
In California, changing lanes in the middle of an intersection D. is legal.
Although it is legal, it's not necessarily the safest thing to do in an intersection.