A-metal is used to for the burner below the pot to speed the transfer
Second one: Water expands when it freezes
Multicellular organisms have a hierarchical structure organization, in which anyone is made up of numerous parts and is itself a component to the next level.
<span>The food chain describes who eats whom in the wild. Every living thing—from one-celled algae to giant blue whales—needs food to survive. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem.</span>