Answer:
Gas
Machine Guns
Trenches
Explanation:
ww1 was all about using mustard gas and it was popularized before being banned after ww1 and ww1 was the first introduction to full auto machine guns similar to LMGs nowdays and trenches were created to prevent getting shot, gassed or sprayed down by enemies
It would be "<span>Making a contact" that is not one of the most common uses of Twitter, since Twitter is used mostly to interact with people you already know, or who you "follow". </span>
I don't understand what you mean by the term "middle kingdom." In the Tang Dynasty of China, they considered themselves to be the Middle Kingdom because they saw themselves as the center of the earth, if that helps.
The first alternative is correct (A).
<u>The marginal cost is a microeconomic measure that aims to measure the effectiveness of the production of a given good by a company.
</u>
The marginal cost content is simple. Marginal cost is cost if you produce ONE more unit of good. For example, if I have a firm that produces chocolate and my daily output is 10 bars of chocolate per day. The marginal cost is how much it costs to produce one unit more than I normally produce, that is, the cost of the 11th bar.
The graph of pie production, initially the marginal cost is decreasing, up to the third pie. From the fourth pie, the marginal cost starts to increase steadily. This is because the company has a limited production structure, that is, three pies are produced efficiently by employees and inputs. However, as production increases, more employees must be hired, and if space is limited, each employee's productivity decreases. For example, if the company had 1 employee who produced up to 3 pies. When you hired another one, the efficiency has decreased because there is only one mixer, that is, while one employee produces the other, he has to wait.
In this way, marginal cost serves as a measure of an enterprise's efficient production rate.