operational definition term refers to a precise statement of how a conceptual variable is turned into a measured variable
<u>Explanation:</u>
An operational definition is the description of methods the researcher is performing to practice to contain a particular variable. Each valid psychology education comprises an operational definition of the variables in the examination. An operational definition enables the researchers to report in a particular design what they intend when they practice a specific term.
Frequently, operational definitions are accurate and calculable. Particularizing variables in this system enables other characters to understand if the investigation has efficacy. Efficacy here relates to if the researchers are really covering what they proposed to cover.
The answer is Farmers
As the Railroads in the early United States moved west wards towards the Pacific Coast, it was still going to operate in a region with a very thin population.
The Western parts of the country were considered poor and not many people had moved there except for farmers and miners.
However, once the railroads started to move west wards, many farmers looked at it as an opportunity to make a quick buck. They were willing to sell the best agriculture land in return for high profits.
Farmers also believed that by selling good land and providing easy routes to railroads might mean greater settlement in the region, which would directly lead to more business for them.
The transcontinental railroads were crucial in the union and success of the United States in these early years.
C because Biden is democratic now
The grain production heavily depends on how big of a consumer of grains a country is, and how large the population is, as well as the demographic trends in the country or region.
In this image, we can see that the USA and China has been experiencing very big growth in the production of grains for a long period, with the increase declining in more recent times, though it is still the largest increase. The reason for this is that both countries had large and quick growing population, also being large consumers of the grains as large portion of the daily food is based around them. As the growth of the populations started to decrease, there's also a decline in the increase of the grain production.
Europe doesn't have very large population as a continent, and it has also kept the number of the population relatively stable. After having initial growth, its population has been stagnating and even declining, which has resulted in an initial slight increase of the grain production, and than a decline in it. Also, it is not the whole continent where the grains form the main dishes of the daily consumption of food, thus the production has not been so big.
Africa has had a very low, insignificant growth in the grain production. Despite the continent having an ever growing population, as well as suffering from malnutrition, the way of the agriculture practices are still primitive, and the production has remained low.
