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Salt water slows the dehydration (browning of apples) because it is an acid.
If you put lemon juice in the water it will prevent the browning.
Yes, when the object is submerged in water then water exerts opposite buoyonci force which decrease the weight of object.
robbing the water of oxygen and creating a dead zone
submerged plants is plant which completely submerged in the water with their roots in the bottom mud.
If you keep the cut apple under water if will stop the oxygen in the air to react with the apple and no browning will occur.
The word submerged means it was under water instead of above the water.
Water pressure is greatest against the bottom of a submerged object?
It would only be redundant if the context had already made it unambiguous that it was water. It is possible to be submerged under any liquid: for example french fries are cooked submerged under hot oil (they can't be cooked submerged under hot water).Yes, "submerged underwater" is redundant. Submerged under anything is redundant since the prefix "sub-" means "under." In most cases, the use of "submerged" alone is sufficient. In case there is some question about the substance something is submerged in (not necessarily liquid, not necessarily tangible), you might occasionally have use for "submerged in water."
A water lily is fully submerged an sends its leaves and flowers up to the surface.
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
The unit weight of submerged soil: Submerged Density (kN/m3) = Saturated Density - Water Density Water Density = 9.81 kN/m3