The products of photosynthesis has reactants and products
In photosynthesis for products there are rubp which is technically glucose and oxygen. So your answer would be number 4
The other ones listed are classified as reactants
The answer is <span>fermenting plant material to produce ethanol. The farmer was able to come up with a new product besides his harvested plants.He can now make this as a business and start to gain profit. Ethanol can also be linked as a source of material to make other related products. </span>
Their mass because it can let you know their weight and size
