a. Regularly spaced imaginary lines on Earth’s surface running parallel to the equator
b. Regularly spaced imaginary lines on Earth’s surface running north and south and converging at the poles
The Correct Answer and Explanation is :
Answer:
a. Lines of Latitude
b. Lines of Longitude
Explanation:
Earth’s surface is organized using a grid of imaginary lines known as the geographic coordinate system, which consists of latitude and longitude. These lines help locate any point on Earth with precision.
a. Lines of Latitude
Latitude lines, or parallels, are imaginary horizontal lines that run parallel to the equator and measure distances north or south of it. The equator, designated as 0°, divides the Earth into the Northern Hemisphere and Southern Hemisphere. Latitude values range from 0° at the equator to 90° at the poles (North Pole at 90°N and South Pole at 90°S). Each line of latitude is equidistant from the ones above and below it, forming parallel circles. Latitude lines are critical for understanding climate zones, as regions closer to the equator tend to be warmer, while higher latitudes are colder.
b. Lines of Longitude
Longitude lines, or meridians, are vertical lines that converge at the poles and measure distances east or west of the Prime Meridian. The Prime Meridian, located at 0° longitude, passes through Greenwich, England. Longitude values range from 0° to 180° east or west, with the 180° line roughly corresponding to the International Date Line. Unlike latitude, longitude lines are not equidistant; they are widest at the equator and meet at the poles. Longitude is essential for determining time zones, as Earth’s rotation means different longitudes experience sunlight at different times.
Significance:
Together, latitude and longitude form a grid that allows for precise navigation, mapping, and geographic analysis. For example, global positioning systems (GPS) rely on this coordinate system to provide accurate location data, enabling everything from navigation to disaster response.