The correct answer is: Only 1.
Most of the territory of Jharkhand is not covered with rivers and lakes. Only about 10% of the state is covered by water bodies. The remaining 90% is covered by forests, hills, and plains.
Parasnath hill is found in Giridih district. Panchghagh hill is found in Hazaribagh district.
Therefore, only statement 1 is not correct.