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_____ is when a force is exerted on an object and the object moves a distance in the direction of the force.
Answer: Work
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Because the earth is moving around the sun but the sun isn’t revolving around anything
Answer:
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Explanation: