Answer:
There was a release of immense heat within the bodies as they collided together as gravitational potential energy was converted into kinetic energy of the individual gas particles and then collisions between these particles converted this energy into heat. 
Therefore, a massive amount of heat was released.
 
        
             
        
        
        
Answer:
See Explanation
Explanation:
Yes, this is true because some bacteria in our environment tends to either fend off of or kill other types of bacteria. In this case, this bacteria is helpful because it turns gaseous nitrogen into a form that can be absorbed and used by plants in our environment.
 
        
             
        
        
        
Answer:
Famine.
Explanation:
Famine, a shortage of water or food, will often result in a significant population decrease.
 
        
             
        
        
        
I think True, sorry if i'm incorrect :(
        
             
        
        
        
Answer: Option B) NADH and FADH2
Explanation:
The purpose of the Krebs cycle is to convert potential chemical energy into metabolic energy in the form of ATP that can be used by the body.
Hence, the products of the Krebs cycle include:
- 3 molecules of NADH, 
- 1 molecule of FADH2,
- 1 molecule of GTP,
- 2 molecules of CO2 
Thus, NADH and FADH2 are two of the products of Krebs cycle.