The utility<span> approach </span>helps explain the law of demand<span>. In fact, the </span>demand<span> curve for a normal good is downward sloping due to the </span>law<span> of </span>diminishing marginal utility<span>.</span>
I think the best explanation to this is that plants will do everything to get sunlight thats why they move in order to get more. I hope you are satisfied with my answer and feel free to ask for more if you have questions and clarifications
