The "-s" at the end of "tropics" and the "-s" at the end of "needs" are both suffixes that indicate plurality. However, they are used in different ways:
The "-s" at the end of "tropics" is added to the word to indicate that there is more than one tropical region. For example, you might say "The tropics are home to many different species of plants and animals."
The "-s" at the end of "needs" is added to the word to indicate that there is more than one need. For example, you might say "The needs of the community must be taken into account when planning development projects."
In summary, the difference between the "-s" at the end of "tropics" and the "-s" at the end of "needs" is that they are used to indicate plurality in different ways.
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Answer:
The "-s" at the end of "tropics" and the "-s" at the end of "needs" are both suffixes that indicate plurality. However, they are used in different ways:
In summary, the difference between the "-s" at the end of "tropics" and the "-s" at the end of "needs" is that they are used to indicate plurality in different ways.