Which gas is colorless and odorless?

ozone
methane
benzene
ammonia
Methane is the main com­po­nent of natural gas piped into homes for domestic heating and cooking pur­pos­es. In order to assist in de­tect­ing leaks, a sul­phur-­like odorant is added the gas used by con­sumer­s.

Answers distribution

ozone
methane
benzene
ammonia
answers
flagItaly
35%
64%
0%
0%
31
flagRepublic of Ireland
33%
62%
4%
0%
24
flagGermany
29%
57%
6%
5%
121
flagthe Netherlands
44%
55%
0%
0%
36
flagFrance
27%
54%
13%
4%
22
flagPoland
34%
51%
8%
4%
9427
flagNorway
48%
51%
0%
0%
31
flagthe United Kingdom
35%
50%
7%
5%
332
flagMalaysia
33%
50%
4%
12%
24
flagNigeria
42%
47%
5%
5%
19
flagDenmark
47%
47%
0%
5%
17
flagSweden
41%
47%
5%
5%
17
flagUnknown
41%
42%
9%
6%
356
flagthe United States
39%
41%
10%
8%
484
flagPakistan
40%
40%
3%
16%
30
flagAustralia
46%
39%
4%
9%
43
flagIndia
41%
36%
11%
9%
324
flagthe Philippines
48%
35%
2%
10%
37
flagCanada
52%
30%
7%
9%
42
flagSingapore
62%
25%
6%
6%
16

Gender

men49%
women48%
ozone
35%
39%
methane
49%
48%
benzene
9%
8%
ammonia
5%
4%

Language versions

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Which gas is colorless and odorless?
1404
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Author: Kasia
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