No. It is a partially submerged plant.
Duckweed does float
Yes
Yes
No, it is a floating plant, i know you might argue that the roots are underwater while the leaves are above but actually that counts as a floating plant, or else water hyacinth and water lettuce are half-submerged too. Floating plants is a plant that has it's leaves above water and it's roots dangling in water, partially submerged is leaves above water but roots in the soil below water, completely submerged is the roots in the soil below and the leaves also below water surface. -LJTG
Being immersed is completely or partially submerged in water. Being submerged is putting something completely underwater.
Immersed means partially in water and submerged means completely covered.
nothing
No. It is a partially submerged plant.
Yes, it is
Water Lily and Lotus are some I know
Yes,just open book read it 50 times you will remember all.