Equator

Definition

The equator is an imaginary line around the middle of Earth, equally distant from the North and South Poles. It divides the Earth into the Northern and Southern Hemispheres.

5 Must Know Facts For Your Next Test

1. The equator experiences nearly consistent daylight and nighttime throughout the year due to its position.
2. It is located at 0 degrees latitude, serving as a reference point for geographic coordinate systems.
3. Countries on or near the equator typically have tropical rainforests and experience minimal seasonal variation in temperature.
4. The Earth's circumference along the equator is approximately 40,075 kilometers (24,901 miles).
5. Equatorial regions often experience high humidity and frequent precipitation.

Review Questions

• What is the significance of the equator in dividing Earth's hemispheres?
• How does the position of the equator affect climate patterns?
• Why do countries along the equator experience minimal seasonal temperature variation?

Related terms

latitude: A geographic coordinate that specifies north-south position on Earth.

tropics: Regions of Earth surrounding the equator, known for their warm climates.

prime meridian: The zero-degree longitude line that divides East and West Hemispheres, similar to how the equator divides North and South.