Suppose a star is undergoing a nuclear reaction. What happens to the elements around the star as it begins to emit more and more
electromagnetic radiation? A.The lighter elements are pushed farther away than the rocky materials.
B. The rocky materials are broken down into smaller particles.
C.The rocky materials are pulled in by the electromagnetic radiation.
D. The lighter elements are burned up by the electromagnetic radiation.
The composition of a star is abundant in hydrogen and helium, both of which are two of the lightest elements. Because they are very light, they are usually unstable. To becomes stable, hydrogen atoms spontaneously combine with each other through a radiation process called nuclear fusion, to yield helium atoms. This process requires very high energy in the form of heat. Therefore, these lighter elements are burned in order to keep the star alive with energy.
500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.
