Questions

Salinity is often high in enclosed seas, this is due to high temperature, rapid evaparation and little inflow of fresh water.

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

S2 + C ----> CS2

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. 

The repeating units that are used to form the helical DNA structure are called nucleotides.

IRQ-0 is the system timer commonly use in all computers. In a computer, IRQ is an interrupt request which acts as a hardware signal sent to the processor that temporarily stops a running program and allows a special program, an interrupt handler, to run instead.

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.