Yes and no it does and does and doesnt.
A2. The S-bend or the P-bend under the sink is intended to provide a water trap in the Plumbing line. Otherwise sewer smells could enter your room.
There also needs to be a vent to the air in the drain pipe between your sink and the sewer main. If this is obstructed, then the flow of water elsewhere in the system could suck the water out of the trap. This could get blocked by birds or excessive build-up of grease.
Crocodiles close there valve to stay under water.
No, a dish drainer tray does not have to stay in the sink. You might want to put the draining part in the sink though because that is where the water will drain into.
When objects are placed in water, they can sink, float, or stay suspended depending on their density and the density of the water. Objects that are denser than water will sink, objects that are less dense will float, and objects with a similar density may stay suspended in the water.
it matters if it lighter or more dense so if you put oil in water together the oil will sink to the bottom and the water will stay at the top
The boat will sink lower in fresh water. Try floating in the ocean versus your pool. You will see it is easier to stay afloat in salt water.
Simply make its thickness small and base area large...Added:..... a thin sheet of alu foil may stay on the surface as long as there is no water sprayed on it nor immersed under water, then it will sink.
Bats are mammals and do not float. They have a higher density than water, so they will sink if they come in contact with it. Bats are not adapted for swimming and are not equipped to stay afloat on water.
Some plastics are more dense than water, most are not.
They stay in pipping and can react when mixed with water.
because the pieces that make up the wood are spaced out are the reasons it can stay afloat for a while no matter how large it is but when it does stay in the water for a long time the start to become more close together and when that happends they sink.
An eraser would typically float in water because it is less dense than water. The air pockets within the eraser make it buoyant enough to stay on the surface rather than sink.
what object will not sink or float but will stay suspended in the middle of water