Its also known as the Stone age.
I believe the answer is: Changes in speed
Average people tend to become more focus and accelerate our effort when we're on the brink of finishing a certain goal.
So in the scenario above, when a sudden tense/increased movement happen in our body the researchers could perceive it as we're on the brink of finishing an action.
Yes, because as the price increases you get paid also making it hard for others to buy and get into the stock
Answer:
Debido a la falta de dinero, el trueque se hizo popular en la década de 1930 durante la Gran Depresión. Fue utilizado para obtener alimentos y otros servicios. Se hizo a través de grupos o entre personas que actuaron de manera similar a los bancos. Si se vendiera algún artículo, el propietario recibiría crédito y se debitaría la cuenta del comprador.
Explanation:
English:
Due to lack of money, bartering became popular in the 1930s during the Great Depression. It was used to obtain food and various other services. It was done through groups or between people who acted similar to banks. If any items were sold, the owner would receive credit and the buyer's account would be debited.
i believe it's all of the above
