Alot Lol
Beach = sand, pebbles etc. Sea = water.
yes
I believe on the beach means your actually standing on sand, and at the beach means that you have like just parked and are getting out of your car.
Sand is a granular material composed of finely divided mineral and rock particles, while a beach is a landform alongside a body of water covered with sand or other small particles. Essentially, sand is the material found on a beach, but a beach refers to the entire area where the sand is located, including the shore and coastal area.
To effectively incorporate sand into your garden landscaping design, consider using it for pathways, creating a zen garden, or mixing it with soil for certain plants. Sand can also be used to create a beach-themed area or as a base for decorative rocks and succulents. Be mindful of drainage and maintenance when using sand in your garden design.
A sandy beach has fine crystalline soft sand on the shore that people can sit, relax and play, children canbuild sand castles, its a typical beach where people can walk and cherish walking on it A Shingle beach is the one that has pebbles (or simillar stones) that are not suitable for regular walks, building castles, as they are more rocky and not soft.
Regular beach sand is silica - mineral sand is like fine grained quartz.
distinguish between slow and rapid sand filter
differentiate between slow and rapid sand filters
size
One is white.
The difference between beach volleyball and sitting volleyball is that on the beach you do not sit to play volleyball where as obviously in sitting volleyball you would. Also I believe that usually disabled people play sitting volleyball. But I am quite sure that sitting volleyball could be played at the beach.