The ringing experiment is related to:

Select the correct option regarding water transport in plants.

In how many hours,a mustard plant absorbs water equal to its own weight?

During which process in leaves is the water potential positive?

Match the properties of water with their significance:

$(1)$ High viscosity	$(a)$ Temperature of the environment does not affect water
$(2)$ Cohesion	$(b)$ Acts as an efficient solvent
$(3)$ High specific heat	$(c)$ Absorption of mechanical shocks
$(4)$ Polarity	$(d)$ Necessary for the ascent of sap in plants

In a girdled plant,when water is supplied to the leaves above the girdle,leaves may remain green for some time,then wilt and ultimately die. What does it indicate?