'These circular currents that move against the main current occur in wind as well as water'
eddies
DOUBLE Ds: These circular currents that move against the main current occur in wind as well as water
These circular currents that move against the main current occur in wind as well as water
These circular currents that move against the main current occur in wind as well as water
DOUBLE "D"s
eddies
DOUBLE "D"s