What Is the Upper Limit of Stars the Unaided Eye

question 24

Multiple Choice

What is the upper limit of stars the unaided eye can discern on a moonless night in a rural area?

• A)About 3,000
• B)About 30,000
• C)About 300,000
• D)About 3,000,000

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Definitions:

Mastery

A command or grasp over a subject or skill, typically implying a high level of proficiency.

Functional Play

Functional play involves simple, repetitive activities typical in children, such as rolling a ball or stacking blocks, serving as the foundation for more complex forms of play and learning.

Piaget's First Type

refers to the sensorimotor stage in Piaget's theory of cognitive development, where infants learn about the world through their senses and actions.

Repetitive Motor Activity

The repeated performance of movements or actions, often as part of the development of motor skills in children.