Which statement best describes why an island food web could be considered a closed system? a) energy flows freely into and out of the island food web. b)energy enters and exits the system, matter does not. c) new energy enters the food web, and matter is created as it moves through the web. d) no energy exists outside the food web; only matter.

its NOT  d.)No energy exists outside the food web, only matter. just took the Seg. exam, and I got it wrong.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

6/12=1/2

step-by-step explanation: