Magnesium Oxide, MgO, Is an Important Industrial Material

question 101

Multiple Choice

Magnesium oxide, MgO, is an important industrial material. Which of the following is one of its uses?

• A) antacid
• B) catalysts
• C) toothpaste abrasive
• D) construction material
• E) furnace bricks

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Definitions:

Downward Communication

The flow of information from higher levels of a hierarchy to lower levels within an organization or group.

Upward Communication

The flow of information from lower levels of a hierarchy to the higher levels, such as from employees to management.

Horizontal Communication

The exchange of information, ideas, or feedback among individuals or teams at the same hierarchical level within an organization.

MUM Effect

Keeping mum about undesirable messages (choosing not to share bad news).