Explanation:
Why is the free enterprise system subject to business cycles? Because individuals and businesses acting in their own self-interest make economic decisions about factors such as prices, production, and consumption. ... It fixes prices for products.
Answer:first make sure you have the right spelling and you should cancel your card if lost or stolen
Explanation:
I think the answer is rivers.
Answer:
The demographic transition theory helps explain:
d. how population change is related to the technological development of a society.
Explanation:
Let's expand the concept letter D offers of demographic transition theory. Technological development is merely one of the factors that affect populations. The others are education and economic development.
According to the demographic transition theory, we find high rates of birth as well as death in societies with low economic and technological development and in which people are less educated.
As societies develop and people have more access to education, we notice firstly a decrease in death rates. Then, due to fertility and birth control, birth rates will also go down. Finally, both rates will be low in advanced societies.
Answer:
The answer is c) beta, eventually replaced by alpha.
Explanation:
Sleep is a basic physiological need that the human being needs for energy replacement. During sleep, you can identify a cycle that consists of progressive phases, which can be studied through the brain waves produced by the person at each stage.
The studies of brain waves are carried out with the help of an electroencephalogram, this is responsible for monitoring brain activity during sleep, and has helped identify the main brain waves, these are alpha, beta, theta, and delta.
For example, in the case of sleep research in an adult, with the help of the electroencephalogram, it was possible to identify that when the person felt sleepy, he had beta brain waves, this stage is shown when the person still has mental activities, they are characterized by being fast compared to the other brain waves. After this stage, the subject passes to the first phase of the sleep cycle, which is the alpha stage, in this phase the individual presents a state of decrease in their brain activities, these brain waves are characterized by being of greater extent and slower than the betas waves.
<em />
<em>I hope this information can help you.</em>
