Q. The “Metre Convention” is related to which of the following?

[A] Weights & Measures

[B] Isotopes

[C] Alloys

[D] Weather patterns

Answer: A
Notes:

Explanation: The International System of Units (in French Le Systeme International d’Unités — abbreviated as SI) was established by the 11th General Conference on Weights and Measures (CGPM from Conference Generale des Poids et Measures).

The CGPM is an inter-governmental treaty organisation created by a diplomatic treaty known as Metre Convention, which was signed in Paris in 1875.

Source: Science NCERT