Questions

In chemistry, the term transition metal has three possible meanings: The IUPAC definition defines a transition metal as "an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell".

Any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g. iron, manganese, chromium, and copper. Chemically they show variable valency and a strong tendency to form coordination compounds, and many of their compounds are coloured.

Here in the given options, only iron (Fe) is a transition metal since Strontium is an alkaline earth, arsenic is a metalloid, hydrogen is (normally) a diatomic gas.

India ranks 131 in the 2016 Human Development Index (HDI) among the 188 countries. It scored 0.624 and was placed in medium human development category.

The index was unveiled recently as part of the Human Development Report (HDR) 2016 titled Human Development for Everyone published by the United Nations Development Programme (UNDP).

“Verify Scope is the process of formalizing acceptance of the completed project deliverables. Verifying scope includes reviewing deliverables with the customer or sponsor to ensure that they are completed satisfactorily and obtaining formal acceptance of deliverables by the customer or sponsor.” PMBOK [5.4]

Archetypes were models of people, behaviors, or personalities. They were inborn tendencies that play a role in influencing human behavior.

For example: A hero, an innocent, the villain, the mentor, etc...

1. The mentor is a common archetype in literature. The mentor is usually old, and this person often has some kind of magical abilities or a much greater breadth of knowledge than others possess.

2. Characters representing the innocent archetype are often women or children. These character archetypes are pure in every way.

3. The villain wants to stop the hero archetype from achieving his or her goal. The villain is often evil, though there is often a reason—however warped that reason may be—why villains are so bad. Villains often want nothing more than to control and have power over everyone and everything around them.

The support cells of the nervous system are Glia, also called glial cells or neuroglia. In the central nervous system, there are four types of supporting cells. They are ::

* Astrocytes

* Microglial cells

* Ependymal cells

* Oligodendrocytes