For water to become a mechanical weathering agent through ice wedging, it needs to go through a cycle of freezing and thawing.

true
false

your answers are a,b,,e and f

i hope this

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