In physical science there are two types of "isolated systems"
1. Being a Physical System in which it is so far removed from other systems that it does not react with any of them.
2. Being a Thermodynamic System in which it is enclosed by rigid immovable walls of which neither mass nor energy can flow through.
I believe in this case although not stated that it would refer to a Thermodynamic System which would leave you with the only plausible answer as ENERGY AND MATTER CANNOT ENTER OR LEAVE.
None of the other answers make sense. Even if it were referring to Physical. Physical does not react with anything at all. An as you can see Thermodynamic does not allow for anything to pass through or leave.
By universe expanding
by galaxies looking redder than they should be
capturing the afterglow of the big bang
how starlight differs from microwaves
peeking back in time
Answer:
i believe C
Explanation:
the layers propose a volcanic eruption along with the crystals such as how an agate forms.
Answer:
the answer is 'b' matter recycles but some energy is transferred.
Explanation:
Matter <u>cannot</u><u> </u> be created no destroyed, so it must remain in the system. Energy, however, gets used to preform simple tasks. It gets used for the animals even as it passes on from animal to animal. it takes energy for living things to keep on living, but matter will never go away.