Answer:
D
Explanation:
Without gravity, any object wont go to the ground, and without a magnetic field, a compass cant be used for navigation.
equation Fe3O4=Fe+CO2 is an impossible reaction
Answer:
It works because of the significant principle of piezoelectricity
Explanation:
.50 M KCl because 5% is the same as .05, which makes the .50M more concentrated.
Im pretty sure a cinder-cone volcano