HLP PLZ. explain why you need to use more than one property to identify a mineral.

Because  two minerals can share property's so you need more then one to tell them apart. Hope this helped! :)

Explanation:

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

the answer is d.) potassium