1.

Match the following using the code given below.A. Tungsten1. Development of human civilizationB. Titanium2. Light bulb filamentC. Molybdenum3. Artificial jointD. Copper4. Boiler plantABCD(a)2341(b)3214(c)4132(d)1423

Answer»

(a) 2, 3, 4, 1



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