The correct answer is option 1, which states that only statement 1 is correct. Let`s look at each statement to understand why.

Statement 1: "Cyclone is a low-pressure system." This statement is correct. Cyclones are characterized by an area of low atmospheric pressure, with air spiraling inward towards the center. This low pressure is caused by the upward motion of air and the convergence of wind towards the center of the cyclone.

Statement 2: "The wind movement is clockwise in the cyclone of the northern hemisphere." This statement is incorrect. In the northern hemisphere, the wind movement in a cyclone is counterclockwise. This is due to the Coriolis effect, which is caused by the rotation of the Earth. The Coriolis effect deflects moving air to the right in the northern hemisphere, resulting in counterclockwise rotation around the center of the cyclone.

Therefore, statement 2 is incorrect. Only statement 1 is correct.