Questions

Norway is called as the land of midnight sun.

Yes, it can be used, if an accurate clock frequency  is not required. also the component cost is low compared to LC or Crystal.

IP addresses are converted to a domain name by DNS - Domain Name System.

There are two types of printers we use. They are 

* Laser Printers and

* Inkjet Printers.

And again Laser printers are of two categories. They are ::

1. Personal laser printers  and

2. Office laser printers.

Venus has a very high surface temperature of 500o Cand the pressure is 90 times that on the earth.

To get the mass of a mole of NaCl, we need to add the molar atomic weights of the individual elements i.e, Na and Cl

Atomic weights of Na = 22.99 gm/mol  Cl = 35.45 gm/mol

Now, mass of a mole of NaCl = 22.99 + 35.45 = 58.44 gm/mol.