Which of the Following Is True Regarding Fuel Cell Technology

question 14

Multiple Choice

Which of the following is true regarding fuel cell technology?

• A) They were first designed by NASA.
• B) They must be recharged with an electrical current.
• C) They are only about 40-45% efficient.
• D) They must receive a constant supply of water and oxygen.
• E) A fuel cell stack providing all of the electricity for a typical home is not feasible because it would be too large.

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Definitions:

Preoperational Stage

A developmental phase, outlined by Jean Piaget, where children from about 2 to 7 years old engage in symbolic play and struggle with logic and taking the perspective of others.

Conservation

A cognitive ability recognized by Jean Piaget that allows a person to determine that a quantity will remain the same despite adjustment of the container, shape, or apparent size.

Object Permanence

The understanding that objects continue to exist even when they cannot be observed or heard.

Egocentric Thought

A mode of thinking, common in early childhood, where an individual perceives the world solely from their own perspective, often failing to recognize others' viewpoints.