Which of the following plants provides a safe place to insects for laying eggs?

............. pollination is quite common in grasses.

Given below are two statements:
Statement $I$: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement $II$: Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp.
In the light of the above statements,choose the most appropriate answer from the options given below:

Geitonogamy is

In which plant are the female flowers submerged in water?

Which type of pollen grains are required for wind pollination?