Which example provides evidence of a chemical change? F Wood releases ash and smoke when burned.
G Rock particles separate when soil is being sifted
. H Boiling water bubbles when being heated.
J Sugar is not visible when dissolved in water.​

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals