Answer:
This occurs due to the convergence of different air masses with different temperatures, density, and humidity. The turbulent conditions are produced, and cyclonic rain occurs along the fronts of the cyclone. The layer separating them is known as a front. The front has two parts – the warm front and the cold front.
At the warm front, the lighter warm air that is less dense usually forced to rise over denser cold air and thereby leading to cyclonic rain. A variety of clouds get formed, and they generally lead to moderate to heavy rainfall.
Causes for Occurrence of Frontal Rainfall
A tropical warm air mass comes in contact with a cold air mass of polar region. The less-dense, lighter warm air is then forced to rise over the denser, cold air.
It causes warm air to become cold. As the warm air is forced to rise further, it condenses to form the stratus cloud.
After becoming saturated, the stratus cloud begins to precipitate.
Frontal or cyclonic rain falls gradually for a few hours which can also extend up to a few days.
It is prevalent in Britain and Ireland, which is associated with the movement of depressions over the country. In north-west Europe, warm oceanic air and cold continental air converge to produce heavy rainfall in adjacent areas.
Both are igneous rocks, but whereas volcanic rocks are formed from cooling lava on the surface, plutonic rocks are formed from cooling magma below the surface. So plutonic rock is an igneous intrusive rock, while volcanic rock is extrusive.
The dating technique which was used to establish the age of the volcanic ash at the Laetoli site is: potassium-argon (K/A) dating.
<h3>What is absolute dating?</h3>
Absolute dating can be defined as a radioactive process that is typically used to accurately determine the age of a rock, volcanic ash or fossil, by measuring the decay of the isotopes that is associated with the rock or within the fossils.
Thus, scientists can accurately determine the age of a volcanic ash, rock or fossil by measuring its isotope concentration such as through the use of potassium-argon (K/A) dating.
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Answer:
<h3> The continents are the divisions of the earth space elaborated by man to better understand it. These are large landmasses that are separated by the oceans. Thus, according to the current division, there are six major continents: America, Europe, Africa, Asia, Oceania and Antarctica.
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<h3> Oceans are portions of water that occupy the major and largest depressions of the planet's relief. It is, therefore, an immense set of water mixed with other elements, mainly mineral salts, and that surrounds the areas formed by the emerged lands, which includes islands and continents. If we consider that oceans, unlike seas, are not surrounded by continents on at least three sides, we can say that there are only three oceans: the Pacific, the Atlantic, and the Indian, since the Arctic and Antarctic Glacial Oceans would be, indeed large seas (or a set of seas)</h3>
Explanation:
<h3>The earth can be organized into 4 oceans, 7 oceans and 7 continents hope that helps</h3>
