Answer:
Option: D. a mountain
Explanation:
A mountain is the only landforms on the earth that rises above its surroundings. Mountains created due to the moving of the tectonic plates on the crust. When two plates of the earth's crust crash into each other, the land pushes upwards and forms mountains. Mountains have steep, sloping sides and rounded or sharp ridges.
It was the "c. introduction of the assembly line" that enabled mass production in the 1920s, since this meant that products could be made with a division of labor.
This statement is true.
When making foreign trading policies, things like tariffs decide how many things will be imported from where. If you have a most favored nation, you give them lower tariffs and thus motivate them to trade more with you and you help their economy. There can also be an opposite when you make tariffs higher for someone in order to reduce their importing.
The economic term that best describes this relationship is bilateral trading partnership. These countries are trading or trade partners, since they buy and sell goods or items to and from each other after having agreed to do so. Exporting and importing help national economies grow and expand.
Improvements in transportation led to : A. Lower shipping costs for goods
Improvement in transportation usually followed by increased in efficiency, whether it's a larger space to deliver goods or fewer fuel needed to reach the destination. Both will lead to lower shipping cost
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