On what should we blame earthquakes? They are the fault of faults, of course! The cracks and gaps in the tectonic plates that form Earth’s surface are known as faults. Earth's tectonic plates are slowly and constantly sliding past and colliding with each other. Sometimes the rough edges of the plates get stuck as the rest of the plates keep moving. Earthquakes occur when the edges suddenly become unstuck and slip along a fault. Earthquakes can cause another type of natural disaster known as a tsunami. A tsunami is a series of enormous sea waves often caused by earthquakes that occur on the seafloor. The energy produced by an earthquake creates the force behind a tsunami. Tsunami waves can travel thousands of miles across the ocean.
A tsunami wave begins deep underwater and speeds quickly toward shore. As the ocean becomes shallower, the wave appears above the surface. The biggest tsunamis can be as tall as a ten-story building. Waves this large can destroy entire cities.

Which is the best statement to include in a summary of the central idea?

A.
Earthquakes and tsunamis are two of the worst natural disasters on Earth.
B.
Tsunamis are more destructive than the earthquakes that produce the waves.
C.
Earth and tsunamis share a common cause, the shifting of tectonic plates, but tsunamis originate in the ocean.
D.
Faults in the Earth’s surface are responsible for earthquakes, which can cause giant destructive waves known as a tsunami. ( language arts )

marginal cost is a microeconomic measure that us to evaluate the extent to which the level of production of a good is sustainable in accounting, that is, to how many quantities the company plans to profit from the production of the good.

the concept of marginal cost is simple, it means the cost of producing one more item. for example, in the case of pies, the marginal cost is the cost of producing one more pie than those that have already been produced.

it is important to understand that productive activity influences marginal cost. the marginal cost of some goods can be very high, while others may be insignificant. for example, the marginal cost of producing an extra plane is very high. already the marginal cost of a water company to provide 1l more water is derisory.

in the case of pies, the cost involves the inputs, the labor and the fixed cost, which involves the fixed space of the bakery. the level of production initially has the marginal cost decreasing because there is space and manpower available. however, to produce more you have to hire more workers and buy more inputs. if physical space is limited, workers will conflict with places, inputs and their productivity will decrease, meaning there is an optimum point of production for each level of space and manpower. from this point on, the productivity of the workers will be getting smaller because of lack of space, so that the marginal cost of producing one more pie will be increasing. so, although you have not posted the chart, but if you have the answer, you can see that my explanation goes according to the marginal cost curve that will increase from the 4th pie, answer (c).

answer; evidence; reverseremand;