The answer is D.
Factor production that could be changed during particular period is called Variable Factor of Productions.
Basically, factor of productions is divided to fixed and variable factor.
FIxed factors are the one that will always stay the same no matter how many products you made. For example electricity cost, building rent, etc
The variable factors differ depend on how product you produce, such as raw material.
Never turn your vehicle around when it's on a hill or a curve where you can't see very far down the road.
The balance of your car and the detrimental effects of rapid weight shifts won't be the same on every road. Your car will be in the best balance and will be as stable as it can be when you keep up a steady pace on a straight, level route. Many other things can affect your vehicle center of gravity and traction, including the road's gradient (including its steepness and slope direction), the material used to surface the road, the weather, the breadth and geometry of the road, and even the state of the road's surface. So, Never turn your car around when it's on a hill or a curve where you can't see very far down the road.
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Social facilitation refers to the tendency of people to perform enhances on simple tasks and hinders on complex tasks when others are present.
Social facilitation is a social phenomenon in which being within the presence of others improves character assignment performance. this is, humans do higher on obligations while they may be with different human beings in preference to when they may be doing the project by myself.
The development in an person's overall performance of a venture that regularly happens whilst others are present. This impact has a tendency to arise with obligations which can be simple or have been previously mastered via practice.
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Answer:
City-state is a political system consisting of an independent city having sovereignty over contiguous territory and serving as a centre and leader of political, economic, and cultural life.
Explanation:
These three events coincide on the 100th day of Donald Trumps presidency. He chose to attend the rally by his supporters in Pennsylvania. Although he failed to show in the said event by the press, the occasion is still successful.