Answer: B. Regulate the interaction
Explanation: Jerry's behavior or actions while his friend was speaking depicts a combination of non-verbal communication methods or behavior which can be used to regulate an interaction. Actions such as leg crossing, slouching - which involves sitting in a lazy or uninterested or weary manner and yawning which depicts tiredness or sign of sleepy feeling are ways of informing the speaker to round up or shows signs of being uninterested or tired of the conversation.
Calculate the quantity of heat in joules needed to increase the temperature of 250 g of water from 20°C to 56°C. Specific heat capacity of water is 4.18 J°C-1g-1.
