According to the Introduction to the Section on Problem Understanding

question 31

Multiple Choice

According to the introduction to the section on problem understanding,

• A) understanding occurs when we have evolved an external representation for an internal problem.
• B) a primary criterion for understanding is the ability to represent the problem in matrix form.
• C) attention is necessary for problem solution, but it is not essential for problem understanding.
• D) understanding requires a close correspondence between the situation you need to understand and your own internal representation.

---

Definitions:

Lead

A chemical element with the symbol Pb that is used in various industries but is toxic to humans and animals when ingested or inhaled.

Radiation

The release of energy in the form of electromagnetic waves or moving particles at the subatomic level, particularly those high-energy particles which lead to ionization.

Pesticides

Substances used to kill pests, including insects, rodents, fungi, and weeds, often utilized in agriculture to protect crops.

Maternal Anxiety

The feelings of worry, nervousness, or unease that a mother may experience before, during, and after pregnancy, which can affect both her well-being and that of her child.