The polar air masses are air masses that form on the high latitudes, in the polar regions. The tropical air masses are air masses that form on the low latitudes, around the equator.
The polar air masses are cold air masses. They are also dry, very dense, and have much higher air pressure. The tropical air masses are warm air masses. Depending have they formed over land or over sea, they can be either dry or moist, and they have low air pressure as they are much less dense.
A typical polar air mass brings in cold and dry weather, while the tropical air mass brings in warm weather, with either lot of precipitation, or being very dry.
The polar air masses are moving from the high latitudes toward the lower latitudes, while the tropical air masses are moving from the lower latitudes toward the higher latitudes.
Answer:
The troposphere
Explanation:
The answer is the troposphere because Most of the water vapor in the atmosphere, along with dust and ash particles, are found in the troposphere explaining why most of Earth's clouds are located in this layer. Temperatures in the troposphere decrease with altitude.
A convection current is caused by differences in "temperature".
<u>Option: A</u>
<u>Explanation:</u>
The convection current is the outcome of variations in temperature. Like hot substance which is less denser, it rises while cool material which is more denser, it sinks. It is this motion that produces circulating processes in the environment, in water and in the Earth's mantle identified as convection currents. When air heats up it increases in the atmosphere, enabling colder air to circulate in below. This air flow generates waves, together with the Earth spinning. In effect, winds produce surface waves over the ocean.
Answer:
The answer is Divergent plate boundary.
Explanation:
Under the rising convection current of magma, the plates move apart from each other causing crack. The uprising magma would then fill the crack and cools down to form new plate material which adds to the lithosphere.
The percentage of the earths water that is fresh and available for drinking is 1%
