Answer:
The Columbia Exchange is also known as the Great Exchange occurred in the middle of 1940's.
Explanation:
The Great Exchange is an exchange of cultures and livelihood of between Eastern and Western Hemisphere, in the areas of politics, economics, and social back ground.
The great exchange was caused by a strong desire for continents such as Europe, America, Africa and Asia, to participate in joint trading activities, which affected every strata (politics, economics , religion ) of the people and culture.
Crops such as Beans, were exported from America to Europe, Africa and Asia, and eventually grown in the continents they were imported to. As a result, they were issues of epidemics following the trade exchange, but such epidemics were managed eventually.
The correct option is A
Western Asia is a mainly arid and semi-arid territory, and may be subject to drought; In spite of this, there are extensive extensions of forests and fertile valleys. The region consists of pastures, dehesas, deserts and mountains. Water scarcity is a problem in many parts of Western Asia, for the population that grows steadily.
These are "expert and referent power".
Referent power in authority is the capacity of a pioneer to
develop the regard and deference of his supporters in such ways that they wish
to resemble him. In short, referent power is showing others how it’s done.
While expert power depends on workers' observation that a chief or some other
individual from an association has a high state of learning or a specific
arrangement of aptitudes that different representatives or individuals from the
association don't have.
<span>When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from the mean, we call the new value a <span><u>z-score.</u>
According to its definition, a z-score is "</span></span><span>the number of standard deviations from the mean a data point is."</span>
