Questions

A. J . Oparin was the first to propose the origin of life from inorganic chemical atoms like Oxygen, Hydrogen, Nitrogen and Carbon.

Plants that grow in Saline Water are called Halophytes.

When you want to add borders, it can be added to text, cells and paragraphs.

There’s no doubt that working in retail you will encounter an unhappy, disgruntled, or difficult customer.  Learning to hold in your personal feelings, addressing empathy for customers, and representing the company well in order to keep customers coming back are all important skills recruiters will look for when assessing how you deal with uncomfortable situations.

Electronegativity is the tendency for an atom to attract electrons. There are general trends on the periodic table which you can use to determine the relative electronegativity for different elements, but otherwise you can also look at their valence shell and effective nuclear charge to determine their relative electronegativity.

Here from the given options, Lithium has least tendency to attract electrons and thus has a lower electronegativity.