J.J Thompson’s model shows a sphere with electrons that are moving around freely. However, Thompson’s model does not show protons or neutrons. The model that we have today gives a clearer structure showing protons, neutrons, and electrons inside an atom.
<span>I think this is due to aerodynamics. Air is the stuff this is all around you. carry your hand in front of your physique which includes your palm dealing with sideways so as that your thumb is on appropriate and your pinkie is dealing with the floor. Swing your hand back and forth.</span>
<h2>Answer:</h2>
<u>Most porous is gravel</u>
<h2>Explanation:</h2>
Porosity tells us how much water rock or soil can retain. It tells us about the spaces among the grains. Gravel is more bigger than sand or silt. Its grains are arranged in such a manner that their integral spaces are very bigger so they are more porous. Clay is the most porous but since it is not mentioned in the option so after clay comes the gravel. Usually gravel and sand has equal porosity.
