Answer:
The presence in the air of one or more contaminants in such a concentration and of such duration as to cause a nuisance or to be injurious to human life, animal life or vegetation.
Answer:
command economy
Explanation:
In a command economy, the government controls major aspects of economic production. The government decides the means of production and owns the industries that produce goods and services for the public. The government prices and produces goods and services that it thinks benefits the people.
When Pangaea split up, what happened to the western edge of the North American continent?
Answer:
20 miles, this is just me rounding around where it would be.
Explanation:
Answer:
Niger
Explanation:
The northern part of the river, known as the Niger bend, is an important area because it is the major river and source of water in that part of the Sahara desert. This made it the focal point of trade across the western Sahara, and the centre of the Sahelian kingdoms of Mali and Gao.
