Pompeii was one of the cities destroyed by the Mt. Vesuvius eruption.
Answer:
Denser air flows in to replace rising air
Explanation:
Movement of air caused by temperature or pressure differences is wind. In fact, the air moving from high to low pressure follows a spiralling route, outwards from high pressure and inwards towards low pressure. Change in air pressure at a given locality often indicates a change. Both air pressure and air density decrease rapidly with increasing altitude.
The denser air flows into the area of low pressure to replace the rising air. This creates a huge convection cell called a Hadley Cell, named after George Hadley
Data collected by the drilling ship Glomar Challenger confirmed that none of the ocean floor is more than about 180 million years old.
Glomar Challenger began drilling on both sides of the mid-ocean ridges to gather data. The data confirmed what the sea-floor spreading hypothesis predicted. The ocean floor is youngest along the central valley of the mid-ocean ridge while the ocean floor in subduction zones or near the edges of the continents is oldest. The data has confirmed that none of the ocean floor is more than 180 million years old because the older oceanic rock will undergo subduction and go back to the earth's mantle.
<span>New Zealand was voted the top nation on earth for environmental friendliness in 2006.</span>