Which of the following elements are found in the same period? a) Cu and Fe
Ob) Cl and Kr
Oc) C and AI
d) B and Ga
e) Mg and Rb

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

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

hurricanes form in warm water