These are few examples of ecosystem services. These are conditions or processes of natural systems that directly or indirectly have a benefit to humans or enhance their social welfare. They include purification of water and air, maintenance of biodiversity, soil and vegetation generation and renewal, seed dispersal, greenhouse gas mitigation among other services. 
        
             
        
        
        
Answer:
A.) Smell is a chemical sense.
B.) Odorant molecules dissolve in mucus before stimulating a receptor
C.) Olfactory receptors have hairs on the apical surface that respond to stimuli
 
        
             
        
        
        
is a functional unit that results from interactions of abiotic, biotic, and anthropogenic components and are a combination of interacting, interrelating parts that form a unitary whole.  Ecosystems vary in size.  They can be as small as a puddle, or as large as the earth itself.  Basically, any living and non-living things interacting together can be considered an ecosystem.  Within each ecosystem, there are habitats that vary in size.  A habitat is a place where a population lives.  A population is a group of living organisms of the same kind living in the same place at the same time.  Natural ecosystems are made up of abiotic factors such as air, water, rocks, and energy and biotic factors such as plants, animals, and microorganisms.
I know just that
 
        
             
        
        
        
1st image I think would be the answer
 
        
                    
             
        
        
        
It’s called Igneous .......................