Answer:
I think c biological processes 
 
        
             
        
        
        
Answers:
               (a)  30.55 °C
               (b)  298 K and 77°F
               (c)  204.44 °C and 477.44 K
               (d)  -320.8 °F and -196 °C
Explanation:
Converting °C into °F;
                                    °F  =  °C × 1.8 + 32
Converting °F into °C;
                                    °C  =  °F - 32 ÷ 1,8
Converting °C into K;
                                    K  =  °C + 273
Converting K into °C;
                                    °C  =  K - 273
 
        
             
        
        
        
30% should be the percentage of oxygen if the total mass of fe2o3 is 160.
        
             
        
        
        
If there are 2 electrons in the same orbital, the spin numbers would be different for both of these 2 electrons. One would have an up spin and the other a down spin.
        
             
        
        
        
Convection is where the heat source heats the air, and the air transfers the heat to object. Some people prefer to heat their marshmallow through convection, this is achieved by holding the marshmallow high above the flames where the heated air is rising, transforing the heat into the marshmallow.