Because if you have a liquid then you need a glass to keep it together and when it is a solid it is already together so you don't need to do anything
<span>Cost and availability of fuel is a considerable factor when dealing with nuclear power. Fission requires an element that can be easily split in a particle accelerator, such as uranium or plutonium. Fusion, on the other hand, uses isotopes of hydrogen atoms, specifically deuterium and tritium, that can be obtained from ordinary water</span>
Answer: a,b
Explanation: because a scientific theory is something that been thought of and tested multiple times.
This change in pressure is caused by changes in air density, and air density is related to temperature.
