Seismologist calculate the difference in the arrival times p waves

Edit. Answer - Depending on the waves they must measure both at the same station in order to calculate and have knowledge of the interior of the earth. Reasoning - S waves are sheer waves where as P waves are compressional which leads to both factors of understanding the strength and changes going on in the earth.

Intact landscapes such as wetlands, forests and grasslands are some of nature's best carbon sinks – meaning they have the ability to store large amounts of carbon. ... Peatlands such as fens, bogs and swamps are especially efficient carbon stores due to the high amount of organic soil found within them.

Explanation:

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