Questions

We know that, elements in the same group of the periodic table have similar characteristics. Here magnesium and strontium are the same 2nd group elements and have same behavior. 

Therefore, strontium behaves same as magnesium. 

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.

A large underground economy results in an Overstated GDP. The underground economy is also called as Black market. It refers to illegal economic activity. Transactions in the underground economy are illegal either because the good or service being traded is illegal or because an otherwise licit transaction does not comply with government reporting requirements.

Indian river Brahmaputra is also known as Dihang.

The following are the qualities required to be successful in the field of advertising:

 - Creativity
 - Strategic focus
 - Knowledge and expertise in the field of advertising
 - Holding a relevant qualification in the field of advertising
 - Market research orientation
 - People skills etc.

Asha Bhosle . She  is the sister of Latha Mangeshkar

Protested is used because here the villagers express their feeling by making an objection to what has been done.

Hanif Qureishi