When capsaicin – the chemical in spicy foods that makes them so hot, Hot, HOT – hits your tongue, your body registers the sensation as pain. This in turn triggers the release of endorphins, otherwise known as “happy” chemicals that give you an instant head-to-toe feeling of pleasure.
        
             
        
        
        
<h3>Answer:</h3>
II and IV
<h3>Explanation:</h3>
Why the II can't explain that: 
There aren't educated laborers, cause the multinational companies uses the first labourers they found, so the average of them is not always qualified, and the most of them is poor and have not get an instruction. 
Why the III can't explain that: In some parts of Africa and Asia, where labourers mine,work or do other things for multinational companies, the industries are not developed at all, and in case the companies their self had to develop ones in those territories
 
        
        
        
Answer:
Answer:
Cost of one (chicken) =  $
8
Cost of one (duck)  =
$
5
Explanation: heyy there :)
Let c be (chickens) and d be (ducks)
Given :  
50
�+
30
�
=
$
550
Dividing both sides by 10,
5 + 3 = 55 Eqn (1)
44 + 36 = $ 532
11 + 9 = 133 Eqn (2)
Multiply Eqn (1) by 3 to eliminate y term when subtraing Eqn (1) from (2).
Then a Eqn (1) becomes, 15 + 9 = 165 Eqn (3)
Subtracting Eqn (2) from (3),
(15 - 11) = (165 - 133)
4 = 32 or = $ 8.
Substituting value of in Eqn (1),
(5 * 8) + 3 = 55
3 = 55 - 40 = 15
 = 15 / 3 = $ 5