Two drops of dilute sulphuric acid were added to 1 gm of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured solution got separated (step II). Step I and step II are:

Both are physical changes

Explanation:

The dissolution of 1 gram of copper sulphate powder in a small amount of hot water in the presence of dilute H2SO4 is a physical change because no new substance was really formed in the process. This implies that step 1 is a physical change.

In step II, the hot liquid is allowed to cool leaving behind a beautiful blue coloured solution. This also is a physical change.

Hence both step I and step II are physical changes.

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

lol

explanation: