Question

Paheli remembered that she saw a pipal sapling on the sidewall in her school.Can you help her to understand how this would have happened?​

Answer 1

the wall has a lot of moisture and enough of sunlight and as we know that dispersion of seeds takes place and the sapling grows on the wall

Answer 2

The seeds of pipal are dispersed  mostly by birds or by wind sometimes. When they set  on the crack of wall they start germinating by absorbing moisture from the wall and sunlight from the sun .

Explanation:

The birds eat the fruit of pipal . When they sit in wall cracks , they release the seeds of pipal in their excreta. These seeds take moisture from the wall and sunlight from the sun. With all these favourable conditions, the seed starts germinating.