What Are Null Values,and Why Are They a Problem

question 99

Essay

What are null values,and why are they a problem?

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Definitions:

Motor Milestones

Motor milestones are significant points in a child's development where they acquire new abilities in physical movement, such as crawling, walking, and grasping.

Sitting Up

is the act or instance of moving to a sitting position from a lying down position, often considered an important developmental milestone in infants.

Conservation

The understanding in cognitive development that quantity or amount remains the same despite changes in shape or presentation.

Nature

The physical world and everything in it, such as plants, animals, and landscapes, as opposed to humans or human creations.