I would say the answer is a
The ocean and atmosphere are connected. They work together to move heat and fresh water across the globe. Wind-driven and ocean-current circulations move warm water toward the poles and colder water toward the equator. The ocean can store much more heat than the land surfaces on the Earth. The majority of the thermal energy at the Earth’s surface is stored in the ocean. Thus, the absorption and movement of energy on the Earth is related to the ocean-atmosphere system.
In the twentieth century, urban areas were defined as communities of more than 2,500
Explanation:
During the Civil War, American cities expanded even faster as industrialisation and globalisation began. By the turn of the 20th century, the US eastern coast towns were almost inconceivable, and many of their inhabitants were still living in misery. Often extremely corrupt is their local government, police forces, and companies.
Apart from this increase of urbanisation, the US has become more and more global since its foundation. More than 3/5 of the US population today resides in an urban area (usually defined as an integrated region with a minimum population of 2,500) and much less than a quarter is living in a rural area.
Magma is composed of molten rock and is stored in the Earth's crust. Lava is magma that reaches the surface of our planet through a volcano vent.
