________ is the difficulty presented by a certain force, and is key for fitness because it makes the activity harder on your muscles. A) Intensity B) Resistance C) Acceleration D) Velocity - Qammunity.org

________ is the difficulty presented by a certain force, and is key for fitness because it makes the activity harder on your muscles. A) Intensity B) Resistance C) Acceleration D) Velocity

asked Jun 9, 2021 145k views

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