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What is brass composed of?

copper and iron
copper and tin
copper and zinc
copper and lead
Brass is us used for musical instruments such as horns and bells for its acoustic properties and high malleability. One type of brass, called Prince's metal (75% copper, 25% zinc), is used as an imitation of gold due to its beautiful yellow color.
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Answers by country

copper and iron
copper and tin
copper and zinc
copper and lead
answers
flagRepublic of Ireland
10%
20%
65%
5%
20
flagPakistan
13%
20%
55%
8%
81
flagMalaysia
23%
15%
55%
5%
38
flagthe Netherlands
16%
22%
55%
5%
18
flagIndia
11%
28%
54%
5%
672
flagNigeria
13%
30%
50%
6%
90
flagGermany
8%
37%
49%
3%
447
flagAustralia
21%
30%
45%
2%
84
flagFrance
5%
42%
42%
10%
19
flagthe United States
24%
28%
40%
6%
704
flagthe United Kingdom
17%
35%
40%
6%
274
flagCanada
26%
21%
40%
12%
57
flagPoland
16%
36%
37%
9%
11611
flagthe Philippines
25%
25%
37%
8%
59
flagSingapore
12%
45%
37%
0%
24
flagUnknown
10%
43%
35%
10%
37
flagAustria
18%
40%
34%
7%
55
flagSouth Africa
33%
16%
33%
16%
18
flagSwitzerland
27%
36%
31%
4%
47
flagIndonesia
42%
28%
14%
14%
63

Before the 19th century, how many people were needed to make pipe organ play?

one
at least two
four
seven

Where does English horn (cor anglais) come from?

London
Exeter
Paris
Breslau

How many instruments made by Antonio Stradivari still survive?

only one
five
around 70
around 650

Typically, what is bronze made of?

copper and zinc
copper and tin
copper and lead
copper and iron