I looked into it and the answer is sediments if you haven't got it already.
A non-contact force is a force which acts on an object without coming physically in contact with it. The most familiar non-contact force is gravity, which confers weight. In contrast a contact force is a force which acts on an object coming physically in contact with it.
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Answer: Marketing sells products to potential customers, Sales promotes products or services, and Service is a combination of interactions a seller has with the customers.
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