What is adsorption ? Explain different types of adsorptions with suitable examples.

Explanation

1) Most plants can aerate their roots by taking in the oxygen through the lenticels or through the surface of their root hairs.
2) But plants which have their roots in very wet places, such as ponds or marshes, are unable to obtain oxygen.
3) They are adapted to these water-logged conditions by having much larger air spaces which connect the stems with the roots, making diffusion from the upper parts much mor efficient.
4) The most usual adaptation is to have a hollow stem.
5) The problem of air transport is more difficult for trees.
6) An exception is the mangrove tree of the tropics which have earial roots above the soil surface and takes in oxygen through these roots.