The correct answer would be the second option. The correct plan for his experiment would be that the temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables. To determine the degree of damage of the acid it would be best that the amount of acid is the manipulated variable while everything else are assumed constant.
If a company is doing well, more people are going to want to have a piece of the pie (profits/earnings). This will lead them to buy stock. If more people want to buy stock, then the price of that stock will go up since there are many people interested in buying stock and the stock is limited. Once stockholders are selling their stock, the price of the stock will go down. The supply went up and usually when supply goes up, price goes down.
Levin and Co. is a group of oil refineries that has been in the news recently. The company had to stop production for over two weeks because their key supplier refused to sell them crude oil at the old prices. Even after rounds of negotiations, the supplier refused to give in to the demands of Levin and Co. and finally, the company had to acquire the raw material from the same supplier because alternative suppliers, though abundant, could not provide the quantities the company demanded at such short notice. This shows the role of dependence in increasing the power one enjoys.
Answer: This is a positive feedback for punishment or positive punishment.
Explanation:
Positive in this sense doesn't mean good but it means a punishment that will yield a positive result because it is used to discourage an unwanted behaviour or to moderate it .
The coach has taken an appropriate feedback since he has given the student a warning to quit this kind of unwanted behaviour but the student hasn't stopped hence measures has to be taken in order for the students to realise that this behaviour is indeed unacceptable.
