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  4. Major function of roots growing in air of marshy plants growing in saline soil is

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Q. Major function of roots growing in air of marshy plants growing in saline soil is

Punjab PMETPunjab PMET 2001

Solution:

The roots of some plants growing in saline marshes (mangrove plant) suffer from oxygen. This is due to water lagged condition of the soil. In this situation some root branches grow vertically upwards for gaseous exchange.