Most Russian urban centers are located in the West part of the country.
The comparison between Eastern and Western Russia is comparable to the northern and southern United States.
The water table is an underground boundary between the soil surface and the area where groundwater saturates spaces between sediments and cracks in rock.
Infiltration is when water on the earth surface enters the soil
The correct answer should be 3 months.
According to the NRC, this is the optimal period during which we can see whether an intervention has been successful and whether it needs to be changed so as to ensure the success of that particular intervention.
For professional baseball players, swinging at a pitched ball is reinforced with a home run on a _____ schedule.
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Variable ratio is an operant conditioning that is used to reinforce a response which does not have an uncertain response to a particular event.
Therefore, for professional baseball players which hit a lot of balls with a bat, there is no predictable way of knowing where the ball is going to land after a player has hit it.
As a result of it, this is a good example of a variable ratio.
Therefore, the correct answer is Variable ratio
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