Answer:
B. Taking oil out of the ground
Answer:
Over time people move to other places depending on their opportunities.
Explanation: If someone wanted to be a farmer they would settle down in a more fertile area where they can get more land. and someone who wants to be a lawyer or doctor would settle in a more busy area in the city.
federal; state and territory; and local
<span>With respect to major rivers, the Mekong is to Vietnam as the Irrawaddy is to Myanmar. Otherwise known as </span>Burma :)