Hot and less dense material below the
Earth’s crust rises towards the mid-ocean ridge. A mid-ocean ridge is an underwater mountain range, formed by plate tectonics.
<span>As this material flows sideways, it
creates a crack in the crust where magma will flow out. This magma cools down
and becomes the new seafloor.</span>
The largest landlocked harbor in the world is B. San Francisco Bay. It is located in Northern California.
Answer:
Borders are imaginary lines that divide a nation, state, province or city from others. These dividing lines can be taken from geographic features, such as rivers, seas, lakes, mountains, etc .; or in geometric form, using lines as meridians and parallels; or for ethnic reasons, dividing populations based on languages, ethnic origin, etc.
Examples of each of these types of border are:
-Natural border between Argentina and Chile along the Andes Mountains, taking as the dividing line the highest point of the same.
-Geometric border between America and Canada on the west coast, taking the line of parallel 49 as division.
-Ethnic border between Pakistan and India, dividing both nations according to concepts of Islamic or Hindu religious affiliation.
The Industrial Revolution created a mass rural-urban migration
