The first inventions that harness natural energy resource is Water mill. Back then, people use the power of water to move the lever in order to create mechanical movement.
The invention that help transfer water from river to town is aqueduct. Or more commonly knwon as water bridgte, useful to navigate the movement of water.
Lever is the invention that makes lifting weight easier, mostly used in contruction sites.
theres no answer choices butttt there are 3effects that explain the law of demand.
Income effect - As the price of a good increases, people purchase less quantity because they are limited by the amount of income they earn. Since it's not allowed to change, they are forced to purchase less.
Substitution effect - As the price of a good increases people purchase less quantity because they will switch to a now "relatively" cheaper substitute. The price of the substitute isn't allowed to change, so people buy more of it and less of the original.
Law of D.M.R. - As you acquire more of a good, the value of each unit decreases. Because the value is decreasing, so is the amount you are willing to pay leading to an inverse relationship between price and quantity demanded.
sorry its a long answer i dont mean to be that one person
Ebonics, Spanglish, text using the vocabulary, spelling and pronunciation, English words fusing with other languages.
Civilization in China began at the Yellow River Valley.
