estimating geoacoustic properties of sediments with a wide grain-size distribution using sediment organic content and the viscous grain shearing model
Interstitial organic matter (OM) is a common component of marine sediment and is frequently measured across a variety of fields.
It is especially common in sediments with high silt/clay fractions. OM hasn't been accounted for in sediment acoustics models despite the fact that it suspends silt and clay particles in the sediment matrix, adheres to mineral surfaces, and typically lives between mineral contacts, all of which are thought to affect geoacoustic characteristics.
Recent research on sediments from the Baltic Sea, Texas, seagrass-bearing sediments, and mud banks in Brazil has demonstrated that OM content (OC) corresponds strongly with sediment geoacoustic characteristics, including porosity and index of impedance.
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Answer:
Option (E)
Explanation:
Keeling has collected various data over the last few decades regarding the earth's atmospheric CO₂, and with the help of the photosynthesis process, he tried to determine the Keeling curve in the graph. He also considers that the earth climatic condition is the same everywhere like in the equator.
In the tropical and equatorial areas, the temperature is relatively high and also the area receives a maximum amount of sunlight and rainfall. This region supports a large number of species. This region has a higher concentration of CO₂. In addition to the increasing industrial development and consumption of fossil fuels, the CO₂ content has drastically increased over the last few decades.
From the experiment, he observed that the CO₂ content is maximum during the spring season as the plant matters undergo decomposition it releases a large amount of CO₂ into the atmosphere. But this CO₂ content is minimum during the autumn season because plants absorb the lesser amount of CO₂ in order to carry out the process of photosynthesis.
Thus, the Keeling curve shows a straight line sloping upward in the graph, which describes that the CO₂ content will be high in the tropical and near-equatorial environment.
Hence, the correct answer is option (E).
C) Corrupt leaders and the legacy of colonial rule.