C. Fewer habitats for wild animals to live in
Explanation:
Biodiversity does not directly impact humans in that there are fewer habitats for wild animals to live in. This is a direct impact on animals and not humans. 
Biodiversity is the variation of life forms in an area. It is measured by the ability of the ecosystem to sustain different life forms and keep their interaction with the environment. 
It helps to maintain and sustain life. 
To humans, reducing biodiversity; 
- reduces the potential of medicine derived from other organisms. When their habitat is lost, we lose them. 
- fewer ecosystems to appreciate for beauty and recreation. It leads to loss of the ecosystem. 
- fewer wild food species for humans to eat. 
Loss of habitat directly affects wild animals and not man. 
learn more: 
Biodiversity hotspots brainly.com/question/10723602
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Assuming ammonia is the product of this reaction:
N2+3H2--->2NH3
2 mole N2 * (3 mol H2)/(1 mol N2)= 6 mol H2
You would need 6 mol of hydrogen gas to completely react with 2 mol of nitrogen. 
        
             
        
        
        
The concentration of diluted solution is 0.16 M
<u>Explanation:</u>
As, the number of moles of diluted solution and concentrated solution will be same. 
So, the equation used to calculate concentration will be:

where,
 are the molarity and volume of the concentrated HCl solution
 are the molarity and volume of the concentrated HCl solution
 are the molarity and volume of diluted HCl solution
 are the molarity and volume of diluted HCl solution
We are given:

Putting values in above equation, we get:

Hence, the concentration of diluted solution is 0.16 M
 
        
             
        
        
        
Answer:
The answer to your question is Pressure = 5 atm
Explanation:
Data
Volume 1 = V1 = 0.5 l
Pressure 1 = P1 = 1 atm
Volume 2 = V2 = 0.1 l
Pressure 2 = P2 = x
Formula
To solve this problem use the Boyle's equation
                       V1P1 = V2P2
Solve for P2
                      P2 = V1P1/V2
Substitution
                      P2 = (0.5 x 1) / 0.1
Simplification
                      P2 = 0.5/0.1
Result 
                      P2 = 5 atm