allerySince 1984, which meridian has been the international standard prime meridian?
AAiry meridian
BParis meridian
CIERS meridian
DTordesillas line
Answer & Solution
Correct answer: C. IERS meridian
1. Between 1884 and 1984 the Greenwich meridian was the standard.
2. Since 1984 the standard is the IERS Reference Meridian.
3. The Paris meridian was used by France until 1911.
_Source: Wikipedia, Prime meridian, International prime meridian_
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