That question currently cannot be answered by science. The answer to the 'M' theory or Unification theory which seeks to link Nuclear, Gravitational and Electromagnitic Forces may provide an answer. Cosmologists are pretty unanimous that Big Bang Cosmology is the only idea that fits the observed facts of our Universe. Steady State Theorem is fast approaching the realm of pseudo-science -- all facts support Big Bang, none support Steady State.
No, some radioactive materials are not solids. Most radioactive materials are solids (uranium, plutonium, isotopes of many other materials) Some radioactive materials are gases (Radon) or isotopes of gases (Tritium, carbon fourteen, etc.)
The place where molted rock along with other materials including gases reach the Earth's surface is a volcano. A volcano can be composite or strato, shield or dome.
Oxygen is a gas. In addition, gases other than oxygen are involved in the respiration process - such as carbon dioxide or nitrogen.
Carbon Dioxide, Sulfur, Coal, ect.
Argon (and the other noble gases) is separated by fractional distillation of liquid air.
This is called the atmosphere.
The industrial gas industry differs from many other types of manufacturing because its raw materials are primarily extracted from the atmosphere. The two principal gases produced by the industry are nitrogen and oxygen.
The noble gases were once called inert gases because until about 1960, no compounds of them had been discovered.
it was Alessandro Volta he discovered methane no it wasnt
In the US Department of Transportation Hazard Classification, and in all other such regulations around the world, Hazard Class 6 is for Poisonous Material. Hazard Class 6 contains Divisions: 6.1 - poisonous materials 6.2 - infectious substances
early organisms created oxygen from other gases in the atomsphere
I a manufactured matieral is a material created using other materials