<span>Veins are located near skeletal muscles so as you move, the contraction of those muscles push the blood along. Larger veins have valves in them so blood can't flow backwards.Breathing exerts pressure on the veins in the chest and force blood to heart. I really hope that this helped :D</span>
Answer:
C. Vigorous Physical Activity
Explanation:
Low/Light Physical Activity - Light exercise is also defined as working out at less than 50 percent of your maximum heart rate.
Examples - Walking slowly, cooking, vacuuming, gardening, dusting and golfing using a cart to travel between tees
Modern Physical Activity - intensity activities are those that get you moving fast enough or strenuously enough to burn off three to six times as much energy per minute
Examples - Brisk walking, dancing, gardening, etc.
Vigorous Physical Activity - When you breath heavily rapidly and increase high heart rate.
Examples - Running, Fast Cycling, Fast swimming, etc.
John Warne Gates describes " barbed wire " as light as air stronger than whiskey and cheap as dirt
Answer:
Chemicals
Explanation:
Poke holes in the plastic bag or store them in mesh bags and place them in your refrigerator. Plastics are not naturally producing elements of the earth; they are synthetically manufactured with a combination of chemicals. ... When food is stored in plastic bags, these chemicals can 'leach' into the food and infest them.
