Many minerals may become cements; the most common is silica (generally quartz), but calcite and other carbonates, iron oxides, barite, anhydrite, zeolites, and clay minerals do as well.
Stars that form shapes, or are connected together.
The answer is: They have no freedom to move.
However is not completely true, as even in a solid atoms still a move a bit (vibrations).
If atoms were able to slide past each other, then we would have a liquid not a solid. Liquids "flow" but never really "break apart" this is because atoms are sliding between them, think of these as a bucket of marbles rolling down a slope.
If they are free to move in all directions, then you have a gas; that's why someone uses perfume in a room, eventually everyone smells it.
Answer:
Pascal is the most common unit for measuring pressure
The average sea level pressure is 1013 mbar
Answer: Collide, Collision, Collide, Proper Orientation and Energy
Explanation:
The basic premise of the collision theory is that particles must first collide if a reaction is to occur. Additionally, that collision must be effective. To be effective, the particles must collide with the proper orientation and the proper amount of energy.
