Answer:
Explanation:
Seashells are the exoskeletons of mollusks such as snails, clams, oysters and many others. ... Mantle tissue that is located under and in contact with the shell secretes proteins and mineral extracellular to form the shell. Think of laying down steel (protein) and pouring concrete (mineral) over it
Carbon in the ocean originates from the atmosphere. This statement is True. In fact, there exists Oceanic carbon cycle. Carbon dioxide is absorbed by the ocean's surface from the atmosphere. It is then converted into a dissolved inorganic carbon. Then it is followed by series of steps following the oceanic carbon cycle.
Subarctic climate is found at 60 degree north latitude.
This is because a latitude of 60°N corresponds to a subarctic climate according to the Koppen Classification and the vegetation consists mostly of conifers.
This region is described by cool summers, low precipitation and moderate humidity or long cold winters and short, warm to cool summers.
To know more about subarctic climate, click on the link below:
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I'm pretty sure it's railroads, because there's not that many highways in Siberia, the rivers would be frozen over, and there's not a ton of people in Siberia. I'm sorry if I'm wrong.
