Answer:
The signs of chemical change include changes in color, temperature, the production of light, changes in odor, and the formation of gases.
Answer:
The frog has 4 toes on each foot in the front, and 5 toes on each foot in the back.
Explanation:

Ore is a deposit in Earth's crust of one or more valuable minerals. The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron. Copper ore is mined for a variety of industrial uses. Copper, an excellent conductor of electricity, is used as electrical wire.
D would be correct (i did this Assessment today)<span />
It should be A)It lost a neutron.