Since 1998, Harvard University wraps marble statues on its campus with waterproof covers every winter. Why?

to protect from frost
to protect from birds
to protect from acid rains
to protect from graffiti makers
The eastern third of the United States is significantly impacted by acid rain. Acids in the rain react with the calcium compounds in the stones like limestone or marble to create gypsum, which then flakes off.
globalquiz.org
0
Correct this question
3
Very interesting!
reach: rather globalartchemistryecologymonumentsnatureuniversities

Answers by country

to protect from frost
to protect from birds
to protect from acid rains
to protect from graffiti makers
answers
flagthe Netherlands
11%
9%
72%
4%
43
flagthe United Kingdom
18%
5%
67%
5%
478
flagGermany
13%
9%
67%
8%
147
flagAustralia
16%
3%
67%
11%
127
flagPakistan
15%
8%
67%
5%
123
flagIndia
18%
5%
66%
6%
1079
flagKazakhstan
9%
15%
66%
5%
101
flagUnknown
22%
14%
63%
0%
49
flagMalaysia
34%
0%
61%
2%
49
flagPoland
21%
10%
60%
6%
24196
flagthe United States
26%
6%
58%
5%
1154
flagthe Philippines
23%
4%
57%
10%
113
flagNigeria
30%
2%
56%
6%
143
flagBelarus
19%
12%
54%
11%
102
flagCanada
27%
7%
52%
9%
102
flagthe United Arab Emirates
25%
13%
52%
5%
36
flagRussia
15%
16%
51%
14%
507
flagFrance
28%
14%
51%
0%
35
flagUkraine
22%
16%
45%
12%
585
flagRepublic of Ireland
37%
13%
37%
8%
45