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Eva Generally Makes a List of Things to Be Bought

question 67

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Eva generally makes a list of things to be bought before going for grocery shopping on weekends.However,last weekend she picked up some items that were not there in her list as she realized that she needed these items when she saw them on display in the store.This activity of purchasing the items that were not in the list is an example of _____ shopping.


Definitions:

Psi

Pounds per square inch, a unit of pressure measurement used to quantify the force exerted in a given area, commonly used in measuring tire and air system pressures.

Atmospheric Pressure

The pressure exerted by the weight of the atmosphere at any given point, usually measured in millibars (mb) or inches of mercury (Hg).

Sea Level

The average height of the ocean's surface between high and low tide, used as a reference point for measuring elevations and atmospheric pressure.

Fluid

A substance that has fluidity; that is, it lacks definite shape and both flows readily and yields to the slightest pressure. Most liquids and gases are fluids.

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