Questions & Answers

A question may be either a linguistic expression used to make a request for information, or else the request itself made by such an expression. This information may be provided with an answer. An answer is a reply to a question or is a solution, a retaliation, or a response that is relevant to the said question.

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What is a suction excavator?
A suction excavator is a combination of excavator and a pump for dual function of excavating earth...
Science & Mathematics