No, pollutants can be natural. Volcanoes often emit sulfur dioxide for instance.
They help humans do stuff we cant do like gather info in volcanoes and other dangerous jobs.
The big island of Hawaii is made up of five volcanoes: Kohala, Hualalai, Mauna Loa, Mauna Kea, and Kilauea. Kilauea is the most famous of these volcanoes and is one of the most active volcanoes in the world.
A river can cause a cliff when moving the soil and rocks out to somewhere else. Volcanoes can make the Earth's crust wider.
actually a simple rock could do terraforming (reshaping the terrain of the earth). The glacier age was extremely efficient, and so are volcanoes. You could get complicated and use sophisticated machinery like bulldoziers... Hope that helps.
prime
It is composite.
Composite.
Composite
5 is prime
Composite, yes.
Prime.
28 is composite.
29 is a prime number.
it is a big triangle
91 is composite.
67 is a prime number.