Answer:
this is really good.
Explanation:
You can really feel the emotion that was put into this pience of writing and you can just picture it in your mind. If you wrote this, good job its fantastic
The layer that encloses and protects the heart is
Pericardium
Good conductors of heat- aluminium, Iron, Lithium, Beryllium.
poor conductors- Mercury, Hydrogen, titanium, Chromium