پیتل ______ کا ایک مرکب ہے؟
-
A. Zinc and copper
-
B. Zinc and iron
-
C. Zinc and gold
-
D. Copper and gold
Explanation
Brass is an alloy made by combining copper and zinc.It is commonly used for decorative items, musical instruments, and fittings due to its strength and resistance to corrosion.
Bronze is an alloy consisting primarily of copper, commonly with about 12-12.5% tin.
Explanation
The three valves of the trumpet add lengths of tubing to the instrument to lower the pitch.
✅ Correct: 0 |
❌ Wrong: 0 |
📊 Total Attempted: 0
