yes just remember the softer the better on the liner and on your feet
Yes by putting an even layer of sand down you will protect the liner from the irregularity's in the ground and absorb impact from above.
To remove a stone under the lining of an above-ground pool, first, drain the water from the pool to below the level of the stone. Carefully lift the pool liner at the affected area to expose the stone, taking care not to damage the liner. Remove the stone and any debris, then reposition the liner, ensuring there are no wrinkles or folds. Finally, refill the pool with water and check for leaks or issues with the liner.
That is most commonly referred to as " washed sand " also float sand , or mortar sand ,it has no stone or stone chips that will damage or stain the liner.
No the amount of weight exerted on the liner of even a litle water makes this imposible to do.
Cabbages grow above ground
You don't necessarily NEED padding under the pool, but it will protect the liner from chaffing and make it last longer. If you ever jump in and hit the bottom, you'll be much happier it's there.
No, they are under water but not under ground. There is no ground above them.
sunflowers grow above ground .
If it is under the pool liner then logic dictates you have to empyty the pool and remove the liner. Then replace the vermiculite with whatever eles you want to use as padding
They grow above the ground. On a tree. Have a look at Wikipedia.
It depends if you under ground Or above ground because you can follow Where you dug if your above ground you can't
Below ground.