Africa experiences a high level of air pollution because it has more older vehicles on the road than industrialized regions true or false?

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points.a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

What was one effect of nation industrialization

Which statement explains why john adams most likely supported the separation of powers between the branches of the new national government? question 1 options: the work of government would be overwhelming for just one branch. the work of government could be accomplished more quickly by three branches. each branch of government would limit the power of the other two. each branch of government could ignore the decisions made by the other two.