What type of energy system (open, closed or isolated) is represented by the picture and why?
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The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.