Explanation:

- Option 1: Latitudes

- Imaginary lines parallel to the Equator.

- Run east-west and measure north-south position.

- Examples include the Equator, Tropic of Cancer, and Tropic of Capricorn.

- Option 2: Longitudes

- Correct Answer: Imaginary lines running from the North Pole to the South Pole.

- Measure east-west position.

- Examples include the Prime Meridian and the International Date Line.

- Option 3: Isobars

- Lines on a weather map connecting points of equal atmospheric pressure.

- Not related to Earth's poles or geography.

- Option 4: Isotherms

- Lines on a weather map connecting points of equal temperature.

- Not related to Earth's poles or geography.

The correct answer is Option 2: Longitudes, as they are the lines that touch both poles of the Earth.