Define BOD, and Explain Why It Can Be Used to Measure

question 15

Essay

Define BOD, and explain why it can be used to measure the pollution level of lakes. Describe how effluents carrying high levels of nutrients can cause eutrophication.

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Definitions:

A-not-B Error

A cognitive error observed in infants during the sensorimotor stage, where they reach for an object at a location where it was previously found (A) rather than its new location (B).

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or touched.

Eighteen-month-old Babies

Infants who have reached the age of 18 months, a developmental stage characterized by significant growth in motor skills, language acquisition, and personal social awareness.

Sensorimotor Development

The stage in early childhood where children learn about their environment through their senses and motor activities, as described by Piaget.