The image displays a map of the Earth divided into hemispheres. What are the names of the continents labeled on the Western Hemisphere, and what is indicated by the thick horizontal line passing through them?

Western Hemisphere Continents and Line of Significance

• The continents labeled in the Western Hemisphere are Северная Америка (North America) and Южная Америка (South America).
• The thick horizontal line passing through these continents is the Экватор (Equator), which is the 0° latitude line dividing the Earth into the Northern and Southern Hemispheres.