The Ocular Lens of a Microscope Should Be Cleaned With

question 15

Multiple Choice

The ocular lens of a microscope should be cleaned with:

• A) lens tissue paper
• B) a damp paper towel
• C) a dry paper towel
• D) compressed air

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Definitions:

Main-Purpose Rule

A legal principle holding that if the main purpose of a guarantor's promise to pay another's debt is to serve the guarantor's own interests, the promise does not need to be in writing to be enforceable.

Secondary Obligation

An obligation that arises only after a primary obligation has not been fulfilled, often seen in guarantor or surety arrangements.

Statute of Frauds

A legal principle that requires certain contracts to be in writing and signed by the parties to be enforceable.

Prenuptial Agreements

Agreements made by a couple before they marry concerning the ownership of their respective assets should the marriage fail.