Question

9. What is responsible for guttation?
(a) Osmotic pressure (b) Root pressure
(c) Suction pressure (d) Capillarity
und​

Answer 1

root pressure is your answer buddy

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Answer 2

Here your answer mate

Guttation is the secretion or exudation of drops of xylem sap on the tips or edges of leaves. Some vascular plants, like grasses, exhibit this behaviour. ... This root pressure causes the exudation. It mostly happens when transpiration is suppressed due to high relative humidity, such as during the night.

(a) the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution..

b)Root pressure is the transverse osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves. Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when transpiration is low during the day.

c)In refrigeration and air conditioning systems, the suction pressure' is the intake pressure generated by the system compressor while operating. The suction pressure, along with the suction temperature and the wet bulb temperature of the discharge air are used to determine the correct refrigerant charge in a system.

d) Capillary rise or capillarity is a phenomenon in which liquid spontaneously rises or falls in a narrow space such as a thin tube or in the voids of a porous material. Surface tension is an important factor in the phenomenon of capillarity.

(so your answer is root pressure)

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