Question

1. Brass is an alloy composed of
2. Sleeping sickness is caused by
and
(F/B)​

Answer 1

Explanation:

1-. Brass, alloy of copper and zinc. In Neolithic times; it was probably made by reduction of mixtures of zinc ores and copper ores.

2- A disease caused by infection with the parasite Trypanosoma brucei

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