Thanks for the points. ;D
Anyway, this is more personal experiences, but I'd say I'd pay a good bit for a haircut. I could cut my hair myself, but that would look pretty horrendous. I'd also pay high prices for good, high-quality chocolate because that stuff is the BOMB and I can't make it, and same thing for an Italian style pizza. I'd also pay high prices for doctors because they help keep you healthy and can alert you if you have a serious illness. I'd also pay high prices for internet and power because in today's society those are some of the most necessary things in the US of A.
Anyway, I'm just spouting. What about you?
-Dylan (AKA Animus)
In this example, john's whistling is serving as a discriminative stimulus.
This procedure, studied by Ivan Pavlov, shows a stimulus ( in this case the action of John's whistling) and a response ( the cattle run to the food trough).
Pavlov studied it with dogs. He realised that when a trainer fed them, dogs salivated. So, he presented the dogs with a "stimulus" ( the sound of a metronome) and when he gave the dogs food. After a few repetitions, when the dog listened to the stimulus, it salivated.
I think that the key word here is "effects" - the study would be into effects of oil - so not other oil-related topics.
Because of this the correct answer is
<span>a. How does oil shape social, political, and economic conditions in southwest Asia?
here the word "shape" is a synonym to "create and influence" - so it's about the effect!</span>
Mountains/seas/oceans
~ P.S. I hope I’m not too late