Nice couch lol
and aluminum I think
        
             
        
        
        
The lowest surface temperature in the solar system was recorded on Uranus (-224 degrees Celsius). The temperature of a planet does not only depend on the amount of solar radiation that it receives but also on the amount of heat that it gives off. Because of Uranus' orientation it absorbs little radiation which makes it colder than Neptune although Neptune is further away from the Sun. <span />
        
             
        
        
        
C.an equal and opposite reaction
        
                    
             
        
        
        
An energy crisis<span> is any significant (bottleneck; logistics; or price rise) in the supply of energy resources to an economy. In popular literature, it often refers to one of the energy sources used at a certain time and place, in particular those that supply national electricity grids or those used as fuel in vehicles.</span>
        
             
        
        
        
Answer:
90°
Explanation:
The angle will be 90° when momentum for a system can be conserved in one direction while not being conserved in another. 
The example can be 
If we apply force on an object horizontally in west direction, then as in other direction south or north we cannot apply the principal of momentum conservation.