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Lactose intolerance is a frequent reason to avoid milk and dairy products. What is lactose?

a sugar
a lactic acid
a protein
a process of milk fermentation
Lactose is a disaccharide sugar that makes up around 2-8% of milk. Lactose intolerance is not an allergy. It is the inability to digest lactose due to insufficient levels of lactase, the enzyme that metabolizes lactose into glucose and galactose.
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a sugar
a lactic acid
a protein
a process of milk fermentation
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72%
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4%
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19%
3%
3%
130
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71%
21%
2%
3%
204
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18%
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2%
75
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17%
8%
10%
174
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13%
6%
60
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19%
11%
16%
81
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25%
11%
11%
30856
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27%
12%
9%
139
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28%
10%
13%
1338
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20%
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16%
702
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26%
11%
184
flagRussia
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32%
10%
11%
1007
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24%
15%
16%
1627
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22%
12%
24%
166
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27%
59
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38%
10%
11%
631
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14%
13%
162
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34%
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158
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12%
20%
123

What is the main difference between Coca-Cola sold in the US, and the Coca-Cola sold in the EU?

sugar
water
caffeine
CO2 level

Aside from cattle, which animal provides most milk used by humans?

goat
buffalo
sheep
camel

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Coca-Cola
Pepsi
Nestlé
Kraft Heinz Company

What was the capital of Brazil, before Brasília took its place?

São Paulo
Pernambuco
Rio de Janeiro
Recife