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
flagFrance
30%
60%
5%
5%
20
flagGermany
30%
57%
5%
5%
119
flagNigeria
31%
56%
6%
6%
16
flagthe Netherlands
45%
54%
0%
0%
31
flagMalaysia
34%
52%
4%
8%
23
flagPoland
34%
51%
8%
4%
9090
flagthe United Kingdom
36%
49%
7%
5%
319
flagPakistan
34%
47%
4%
13%
23
flagDenmark
47%
47%
0%
5%
17
flagNorway
53%
46%
0%
0%
26
flagUnknown
42%
42%
8%
6%
339
flagUkraine
28%
42%
21%
7%
14
flagthe United States
38%
41%
9%
9%
475
flagAustralia
45%
40%
4%
9%
42
flagthe Philippines
45%
37%
2%
11%
35
flagIndia
41%
36%
11%
9%
306
flagCanada
51%
31%
7%
9%
41
flagSingapore
62%
25%
6%
6%
16

Gender

men50%
women47%
ozone
35%
39%
methane
50%
48%
benzene
9%
8%
ammonia
4%
4%

Language versions

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Which gas is colorless and odorless?
1340
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Author: Kasia
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