What is pollination ? Describe its types.

Pollination in water hyacinth and water lily is brought about by the agency of

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by

$A$ : Geitonogamy helps in maintaining homozygosity and superiority of the race indefinitely.
$R$ : It is functionally, ecologically and genetically cross pollination.