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← HistoryWhich outcome arises when an astrolabe's plate is warped by high humidity?
A)Altitude measurements become skewed✓
B)Alidade rotation becomes unimpeded
C)Metal corrosion is accelerated greatly
D)Star pointer stiffens significantly
💡 Explanation
Warpage alters angular relationships and, therefore, altitude measurements become skewed due to instrument error because the angular mapping is based on accurate plate circles. Its flatness ensures reliable sighting angles using the alidade, rather than stiffening star pointers.
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