For centuries scientists thought the Universe always existed in a largely unchanged form, run like clockwork thanks to the laws of physics. But a Belgian priest and scientist called George Lemaitre put forward another idea. In 1927, he proposed that the Universe began as a large, pregnant and primeval atom, exploding and sending out the smaller atoms that we see today.
His idea went largely unnoticed. But in 1929 astronomer Edwin Hubble discovered that the Universe isn’t static but is in fact expanding. If so, some scientists reasoned that if you rewound the Universe's life then at some point it should have existed as a tiny, dense point. Critics dismissed this: the celebrated astronomer Fred Hoyle sarcastically called this concept the “Big Bang Theory"
Maybe it’s not a mineral because it’s just hardened tree resin whereas minerals can be mined and found deep in the earth…?
True, muscle tension can make the muscle sore or it can even pull it. Muscle fatigue is the first step for pulling a muscle.
I think the correct answer from the choices listed above is option b. A permeable rock weathers easily because it <span>contains many small, connected airspaces. Its porosity is very high that it can easily be destroyed by simple means. Hope this answers the question.</span>
