Convection currents is the movement of a fluid or a gas from one particular location to another location. This motion is created by the difference in the density or the temperature of the fluid or gas in the two locations. It could also be used in the movement of energy from one location to another due to the temperature gradient. For convection current in the atmosphere, it could be describe in the rising of warm air towards the upper portion of the atmosphere while the colder air goes under it. This happens because warmer air would have less density as compared to the colder air.
A region that could be farmed and maintained suitable for human life
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Answer: an ice age
Explanation:
An ice age refers to a period of prolonged continental glaciation. An ice age refers to a period when the temperature of the Earth's climate is very low for a long period of time.
This then brings about an expansion of the polar ice sheets, mountain glaciers and the continental ice sheets. Ice age, can also be referred to as the glacial age, and it's a period when there are thick ice sheets that cover areas of land.