Not necessarily. Both liquids and gases can exist over a wide range of temperatures.
Liquids are not better than gases; this depends only on the desired applications.
Molecules - They are more tightly packed in solids than liquids and gases
Generally solids are denser than gas and liquids.
Humans are more use to engaging and thinking about solids than liquids or gases. They are easier to find because they are what we are looking for.
The rate of diffusion in liquids is slower than in gases because the particles in liquids are closer together and have stronger intermolecular forces, which hinders their movement compared to gas particles. This results in a slower diffusion rate in liquids.
Safety goggles are important to wear when doing an experiment with gases or strong liquids because if you have goggles on, the strong liquids or gases won't get into your eyes.
yes, the hotter fluid matter rises and when it cools it falls, hence creating a convection current.
The intermolecular strength is higher in liquids than in gases.
Not only liquids but also solids expand as they get hotter, with few exceptions.
Boyle's law applies to ideal gases, not liquids. In liquids, pressure and volume are not directly proportional as they are in gases. Liquids are generally considered to be incompressible, so changes in pressure do not significantly affect their volume.
vaporization
The molecules of gases are farther one from another than in liquids. But liquids are also compressive although in a very less scale than gases. Put some liquid in a syringe, put your finger on the output side and press the piston. You'll notice that the liquid is slightly compressed.