Questions

All of the factors that contribute to global winds are 

1) Uneven warming of the earth by the sun
2) Coriolis Effect
3) Convection Cells

Permanent hardness of water may be removed by the addition of Sodium Carbonate.

The degeneration of a signal over distance on a network cable is called attenuation.

In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. In plants parthenogenesis is a component process of apomixis.Apogamy is a type of reproduction, occurring in some ferns, in which the sporophytedevelops from the gametophyte without fusion of gametes.Adventitious embryony also called sporophytic budding, is a type of apomixis in which an embryo develops directly from nucellus or integument tissue.So, all three are correct.

In 1960s AT&T introduces its Data phone, the firstcommercial modem. The first commercial modem made for converting digital computer data at analog signalsfor transmission across long distance networks