Skulling with your hands
Breaststroke kick with your feet
Vertical
Keep your head above the water
Strengthens arms core and legs
characteristic of breastroke
As a verb, tread means the way someone is walking. As a noun, tread can mean the top of a stair (where you step on), or the tread of a tire.
Tread means walk or stomp over stuff.
If you mean tire tread depth, the minimum is 1.6mm.
swimming
You mean tyre tread
Tread wear indicator
The African Luhya term for the English word swimming is Okwitubuta.
yes synchronized swimming is a sport because they do work outs and and swim laps every practice and they have to be very strong to tread water for that kong, flexible to hold their legs up and such.
A lane is a small pathway. It can alse be used to denote a fixed route, such as a 'swimming lane".
Tread wear indicator
It sounds like the tread width in millimetres