Questions

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent.

And, water is called the "universal solvent" because it dissolves more substances than any other liquid

It means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients

True, the greenhouse effect is caused solely by human activities such as deforrestation, depletion of natural resources and emission of CO2 by using vehicles, refrigerators and AC's.

The Reserve Bank of India has appointed Smt. Malvika Sinha as Executive Director (ED).

As Executive Director Smt. Sinha will look after Foreign Exchange Department, Department of Government and Bank Accounts and Internal Debt Management Department.

Smt. Malvika Sinha holds a Masters Degree from University of Bombay and has done her Masters in Public Administration. She is also a Certificated Associate of Indian Institute of Bankers.

Smt. Sinha joined Reserve Bank in 1982 and as a career central banker served in the areas of regulation and supervision, foreign exchange and Government and Bank Accounts in the Bank. Prior to being promoted as ED, Smt. Sinha was Principal Chief General Manager, Department of Co-operative Banking Supervision in the Reserve Bank.

Nitrogen (N2) forms Three Covalent Bonds to become stable.

Here the Atmomic Number of Nitrogen is 7. Because there are 2 electrons in the first orbital and 5 in the second and you still have space for 3 more. So it shares, 3 to get the stable octet. Therefore, there are 3 covalent bonds in N2.

Australia won the 1987/88 Reliance World Cup against England held in Kolkata, India.

Phage typing is based on the fact that bacterial viruses attack specific cells. Phage typing is a method used for detecting single strains of bacteria. It is used to trace the source of outbreaks of infections. 

When an atom loses an electron it becomes a positive ion by acquiring negatively charged. When it loses electron, the atom's radius also decreased.

Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are low-pressure areas which, along with the anticyclones of high-pressure areas, drive the weather over much of the Earth.

Middle latitude cyclones are fueled by air high in the atmosphere.