Why is there a border between light and dark on the moon

because the sun illuminates the half of the moon that's facing it leaving the other half dark

id.k ask the border

Explanation:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

it is stable as it is in group 0 which have full outer shells of electrons