Why Does Earth Have a Magnetic Field

question 15

Multiple Choice

Why does Earth have a magnetic field?

• A)Because all planets have magnetic fields that were created during the early formation of the solar system.
• B)Because Earth's inner core behaves like a permanent magnet and produces the magnetic field.
• C)Because the motion of the plates generates an electric current that produces the magnetic field.
• D)Because early in Earth's history the outer core behaved like a moving wire coil in an external magnetic field and produced Earth's magnetic field.

Identify the significance of the concept of object permanence and its development stage.

Explain Lev Vygotsky's concept of the proximal zone of development and its importance in problem-solving and learning.

Differentiate between Piaget's and Vygotsky's theories regarding cognitive development.

Recognize the limitations and criticisms of Piaget's theory, including cultural considerations and the age at which certain cognitive abilities develop.

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Definitions:

Hemophilia

A genetic disorder characterized by the inability of blood to clot properly, leading to prolonged bleeding from even minor injuries.

Epiglottitis

Epiglottitis is a severe, life-threatening inflammation of the epiglottis, which can block airflow to the lungs, often caused by an infection and requiring immediate medical attention.

Croup

A respiratory condition, often in children, marked by a harsh cough and difficulty breathing, caused by inflammation and swelling of the voice box.

Endotracheal Tube

A tube placed through the mouth into the trachea to maintain an open airway, deliver oxygen, or administer anesthesia.