On a hot day, both the demand for lemonade and the supply of lemonade increase. - quantity increases
On a cold day, both the demand for ice cream and the supply of ice cream decrease. - Quantity decreases
When Hawaii’s Mt. Kilauea erupts violently, the demand on the part of tourists for sightseeing flights increases but the supply of pilots willing to provide these dangerous flights decreases. - Price increases
In a hot area of Arizona where they generate a lot of their electricity with wind turbines, the demand for electricity falls on windy days as people switch off their air conditioners and enjoy the breeze. But at the same time, the amount of electricity supplied increases as the wind turbines spin faster. - price decreases.
Step-by-step explanation:
In Economics, price and quantity play a major role in determining about the growth of the economy. In most of the situations, price and quantity are in inverse relation with each other.
This means that with the increase in the quantity of the good supplied, the price of the good will fall and with the decrease in the quantity of the good supplied, the price of that good will increase and so on. They determine the growth, development and the production activities which are going on in an economy.