The variation that involves contracting each muscle group repeatedly with progressively less tension with each contraction is incremental muscle relaxation.
<h3>What is incremental muscle relaxation?</h3>
Incremental muscle relaxation is a type of variation during a physical exercise aimed at relaxing the muscles.
Incremental muscle relaxation is a fundamental component in any training exercise program.
Incremental muscle relaxation consists of relaxing certain groups of muscle fibers that have undergone rhythmic contractions.
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brainly.com/question/731531
The reactivity of an atom is due to the number and arrangement of Electrons (b) in the outer energy level.
Electrons "bond" they're the ones that react to create other elements.
Examples: Salt (NaCl) Carbon Dioxide (CO2)
And so on, and so forth. Thus, your answer....B.
A Fault or B is the correct answer, faults are when Earth's crust is ruptured or cracken deep below the surface in the crust.