I think it’s A because I remember learning about this but I’m not 100% sure so if it’s wrong sorry
        
             
        
        
        
Answer:
about 50,000-10,000 years ago
Explanation:
i looked it up on google
 
        
             
        
        
        
Answer:
a portrait of you and your friend
Explanation:
 
        
                    
             
        
        
        
Answer:
1. Perfumes
2. Odour
3. smell of rain ( you can touch the rain, but not its smell )
4. smoke
5. LPG ( Liquefied Petroleum Gas ) or Natural gas used for cooking
Explanation:
 
        
                    
             
        
        
        
It was intended to express emotions.