What can water do to the rock to weather it

The water can come from rain and this can be called chemical weathering or it can break apart rocks in a process of Frost wedging.

Explanation:

Frost wedging is considered mechanical weathering and it breaks rocks by freezing water in which expands the water by 9% every time it freezes expanding a crack or cracks in a rock more and more

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

because the light is a great source of energy for the plants to survive. (i hope this )