Answer:
it makes it difficult to pump the oil through the oil rigs.
Incense, I guess. Can you be more specific?
Three major consumers in a temperate forest area - 1) primary, 2) secondary, and 3) tertiary
1. Primary consumers: squirrel, birds, deer, etc.
2. Secondary consumers: raccoons, snakes, etc.
3. Tertiary consumers: bears, etc.
Answer:
I think A. Independent States. Sorry if I'm wrong.