Why root pressure is not an important factor for upward movement of water in the tall trees.

Water molecules is very polar. Polar end of molecule attracts opposite charges on another water molecules (acts like magnet). How will you explain this property of water with refrence to upward movement of water? Comment on the upward move-ment of water given the intermolecular hydrogen bonding in water.

Why are flocs important in biographical treatment of waste water?

Water moves up against gravity and even for a tree of 20m height, the tip recives water within two hours. The most important physiological phenomenon which is responsible for the upward movement of water is ……………

Why the vapour pressure of saline solutions is lower than that of pure water ?

What role does root pressure play in water movement in plants?

Why abiotic factors are important?

Why the vapour pressure of a solution of glucose in water is lower than of pure water

0.1 mole of NaCl has more osmotic pressure than 0.1 mole of sugar dissolved in one litre of water. Why ?