The answer is C!!!!!!!!!!!!!!!!!!!
Answer:
<h3>Plants need oxygen because plants are made living cells which need to perform cellular respiration to get the energy they need to function. Admittedly, needing to perform cellular respiration alone does not mean that consuming oxygen is required - many (micro)organisms use fermentation or anaerobic respiration.</h3>
Sodium/Atomic number
11
Gold/Atomic number
79
Potassium/Atomic number
19
Silicon/Atomic number
14
-delta H symbolises an exothermic reaction. Hence, it gives off heat. Reversely, it would absorb heat.
