Explanation: Longitude lines, also known as meridians, are imaginary lines that run from the North Pole to the South Pole, dividing the Earth into vertical sections. These lines are used to measure distances east or west of the Prime Meridian, which is located at 0 degrees longitude and runs through the Royal Observatory in Greenwich, England. The Prime Meridian serves as the reference point for all longitude measurements.
Longitude lines are not parallel to each other; they converge at the poles. This means that the distance between longitude lines is greatest at the Equator and decreases as you move towards the poles. The Earth is divided into 360 degrees of longitude, with each degree representing a specific distance. For example, at the Equator, one degree of longitude is approximately 111 kilometers (69 miles).
Latitude lines, in contrast, run east to west and measure distances north or south of the Equator. The Equator is the largest latitude line and is located at 0 degrees latitude. Latitude lines are parallel to each other and are used to measure distances north or south of the Equator. The Earth is divided into 180 degrees of latitude, with the North Pole at 90 degrees north and the South Pole at 90 degrees south.
Understanding the difference between longitude and latitude is crucial for navigation, mapping, and various geographical applications. Longitude lines are essential for determining the east-west position of a location on the Earth's surface, while latitude lines are used to determine the north-south position. Together, these lines form a grid that allows us to pinpoint any location on the Earth with precision.
In summary, the correct answer is (A) Longitude, as these are the lines that run north to south around the Earth, dividing it into vertical sections and measuring distances east or west of the Prime Meridian. Latitude lines, climate, and degree are not the correct answers as they do not describe the north-south lines around the Earth.