Oxygen<span>, </span>sulfur<span>, </span>nitrogen<span>, and </span>hydrogen<span>.
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Answer:
Taxonomy is the process that deals with classifying different living things.
Explanation:
Scientists use taxonomy for the better understanding of the process of evolution and the evolutionary relation between different organisms. It is very important to classify different organisms in order to understand the relationship. Carolus Linnaeus is known as the father of taxonomy.
They are both types of seismic waves produced by the sharp movement of rock within the earth.
The seeds are enclosed because it's the plants way of protecting them.