A line on a map joining places of equal rainfall is called an _____?

A line on a map joining places of equal rainfall is called an _____?

مساوی بارش کے مقامات کو جوڑنے والی نقشے پر ایک لکیر کو _____ کہا جاتا ہے؟
Explanation

Isohyet is a line drawn on a map connecting points that receive equal amounts of rainfall in a given period.

A map with isohyets is called an isohyetal map.