Acid mine drainage forms when water reacts with ___ in discarded mining materials?
Nitrogen
Mercury
Sulfur

The vedas were a collection of aryan religious writings t or f

Use your vocabulary words to complete the sentences below. more of the world's population is now concentrated in heavily populated urban areas known as a this is quite a contrast from the past when or native groups were either farmers or — hunters and gatherers who moved between places in search of food. advanced technology has led to the integration of world economics and cultures, in the world's more developed countries. this integration requires , the responsible use and management of natural resources.

Amountain is larger than a hill, with steep sides true or false