Answer:
Permanent magnets are materials where the magnetic field is generated by the internal structure of the material itself.
Explanation:
But in certain materials, called ferromagnets, all the spins and the orbits of the electrons will line up, causing the materials to become magnetic. This would be your normal iron, cobalt, nickel
Answer: Incorrect posture, learn good posture habits or get ergonomical chairs
Explanation:
Incorrect posture is sitting against the appropriate posture of the body, either when writing, sleeping, eating or working. When there is a bad posture to this it affects the body system especially the spinal cord, neck, back. Incorrect posture can lead to kyphosis. One way Sam can solve this pain is by learning proper sitting or working pattern or get ergonomical chairs that assist him to sit well.
Answer:
selects,organizes and interprets
Explanation:
During an active perception,our mind is engaged to perform the functions of selection, organization and interpretation of what we sense or perceive.