(b) Show the formation of CaS by the transfer of electrons.(c) Name the ions present in this compound CaS, Atomic number of Ca=20, O=16ORWhat is cinnabar? How is metal extracted from cinnabar? Explain briefly.Compare and contrast nervous and hormonal mechanism for control and coordinationWrite the function of the following in human female reproductive system:Overy, oviduct, uterusHow does the embryo get nourishment inside the mother's body? Explain in brief.You are given 3 resistors each of 3ohm and you are asked to get all possible values ofResistance when you connect them in different combinations. How many values ofResistance can you get?Define the process of nuclear fission. Write the steps involved in generating electricityin a nuclear reactor.A 4cm tall object is placed perpendicular to the cinciple axis of a convex lens of focallength 24cm. The distance of the object for is 16cm. Find the position,size andature of the image formed, lens​