<span>The correct answer is letter A. when it is unstable. Air is most likely to rise when it is unstable. Air is most likely to rise after a warm front passes over an area. Air rises as it gets warmer. As air rises, its temperature drops. It is called atmospheric stability, it is the tendency of air to rise or not.</span>
This is true, the medieval period was a time when the goths (who were Germanic) did migrate west and influenced Western European culture
A soda in a styrofoam cup with a lid, coffee in a thermos with the lid closed is the isolated systems.
<h3><u>Explanation:
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Styrofoam cups and thermos containers are typical examples of containers that don’t allow the transfer of heat energy in their environments. A system is said to be isolated if it doesn’t allow heat exchange with its surroundings. A Styrofoam cup with a lid keeps the coffee hot due to its insulation properties.
Thermos container is a more effective insulator since it is made of double-walled container to lock either heat or cold inside. Insulators create effective isolated system depending on the materials they were made from. A completely isolated system does exist.
<span>Fossils that are similar which are found on different continents helps the geologists to know how the continents are connected before. The belts of the mountains proved the moving plate’s boundaries; this clearly shows the direction in which the continents are drifted. Extrapolating from this information, scientists had a rough idea of how the continents were arranged eons ago.</span>
