The functions are: to carry nutrients to and waste away from every cell in your body as the name suggests, the circulatory system is involved with circulating blood throughout the body.
Air pollution is usually with all the smoke from using fossil fuels, I would try not using them as much. Water pollution is usually from oil spills and garbage littered in water sources. Land pollution is a lot from landfills, we are using so much garbage it takes lots of landfills to hold them, I would start by recycling my recyclable products and using recycled products. {{{BTW this is not good 2 paragraphs, use more evidence and details and add more this is just some good ideas}}}
They are found to be more productive unlike the lazy teens, because they they have a habit of Getting out and exercising.
Answer: I would say A is the answer.
Explanation: getting excited when hearing a ring similar to that of winning a casino game would not constitute excitement as there is no direct influence or envolvment with the individual experiencing this excitment to the ringing. the individual is simply hearing this noise and responding with excitment with no direct reasoning behind it, as apposed to all the other scenarios where there is direct influence to constutute a direct resonse.
hope i could help and have a great day.
