The region in which the Sun is completely blocked during an eclipse is called the ______.

The region in which the Sun is completely blocked during an eclipse is called the ______.

• A. Penumbra
• B. Shadow
• C. Umbra
• D. Corona

Answer: (C)

During a solar eclipse, the Moon's shadow on Earth has two key parts: an inner, darkest region where the Sun is completely hidden, and a surrounding lighter area where only part of the Sun is blocked. The inner region is called the umbra. In this zone, observers experience a total solar eclipse because no portion of the Sun’s disk is visible. The outer region, the penumbra, yields a partial eclipse since only part of the Sun is obscured. The corona is the Sun’s outer atmosphere that becomes visible during totality, not the region where the Sun is completely blocked. So the region where the Sun is completely blocked is the umbra.

During a solar eclipse, the Moon's shadow on Earth has two key parts: an inner, darkest region where the Sun is completely hidden, and a surrounding lighter area where only part of the Sun is blocked. The inner region is called the umbra. In this zone, observers experience a total solar eclipse because no portion of the Sun’s disk is visible. The outer region, the penumbra, yields a partial eclipse since only part of the Sun is obscured. The corona is the Sun’s outer atmosphere that becomes visible during totality, not the region where the Sun is completely blocked. So the region where the Sun is completely blocked is the umbra.