Answer: Principle of motion economy.
Explanation: principle of motion economy developed by Frank and Lillian Gilbreth are guidelines to help determine the work method, workplace layout, tools, and equipment.
The aim of this is to help in identifying and replicating one best way to complete a task and also minimize the physical and perceptual loads imposed on people engaged in that task.
<u><em>Answer:</em></u>
<u><em>An assistive technology device is defined as "any item, piece of equipment, or product system, whether acquired commercially off the shelf, modified, or customized, that is used to increase, maintain, or improve functional capabilities of a child with a disability.</em></u>
<u><em>Explanation:</em></u>
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number 3: Migration of people
Answer:
Because the earth is spherical, the position of Polaris relative to the horizon depends on the location of the observer. Consequently, the angle between the northern horizon and Polaris is equal to the observer's latitude.