Which error increases when inaccurate bubble levels are used on a marine sextant's artificial horizon?

💡 Explanation

When levels are off, the reflected horizon is tilted relative to true horizontal causing a vertical angle error affecting altitude measurements. Therefore, vertical angle error results, rather than parallax, index error, or dip error, which stem from other sources of optical misalignment or horizon limitations.

• Which effect reduced trebuchet range if counterweight mass was significantly decreased during a siege?
• Which mechanism allowed Roman fortifications like Hadrian's Wall prevent breaches despite lacking deep foundations?
• Which risk increased when ancient Mesopotamian irrigation systems delivered water with high dissolved salt content?
• Which water management consequence resulted from extensive chinampa cultivation in the Basin of Mexico ca. 1500 AD?
• Which agricultural outcome improved maize yield in pre-Columbian chinampa systems when farmers introduced 'waffle' beds with raised platforms?
• Which mechanism causes bronze tools from the Bronze Age to be significantly harder than pure copper tools?