Answer:
Convection currents flow due to variations in the temperature and salinity in seawater, both of which influence its density. Variations in density in different regions of the ocean will cause water to flow from less dense areas to more dense areas as water heats up and becomes less saline, producing a horizontal convection current. Vertical convection currents can arise as cooler, more saline water sinks, causing warmer, less saline water to rise.
Some of the most typical characteristics of groundwater are weak turbidity, a constant temperature and chemical composition and almost overall absence of oxygen. Circulating groundwater can have extreme variation in the composition with the appearance of pollutants and various contaminants.
Answer:
wind and smoke from factories
Explanation:
Answer:
The cold climate makes it very difficult to grow many crops, there is also some worse weather conditions like lack of warmth, no rain, less heat,,etc. which makes the life very hard in the hill areas. Hope this helps! =)