Questions

Light Year is related to Distance. It is the unit of Distance.

It is about 9.5 Trillion Kms or 5.9 Trillion miles.

• It is the distance that light travels in vaccum in one julian year i.e, 365.25 days.

The basic expansion card types in A+ Hardware certification are ISA and PCI, ISA these can be used only on XT, AT and ATX boards. The industry now considers ISA obsolate.

There are 12 Indian origin persons in the "House of Commons".

• The House of Commons is the elected lower house of the bicameral parliaments of the United Kingdom. The UK public elects 650 Members of Parliament (MPs) to represent their interests and concerns in the House of Commons. MPs consider and propose new laws, and can scrutinise government policies by asking ministers questions about current issues either in the Commons Chamber or in Committees. 

Sound waves cannot travel through a Vacuum.

A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

Yes, Carbon disulfide is prepared by heating sulfur and charcoal. 

S2 + C ----> CS2