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.

Ramesh Agrawal

Both of them are relation ship constraints

In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.

Salinity is often high in enclosed seas, this is due to high temperature, rapid evaparation and little inflow of fresh water.

The Project Risk Management Processes include the following:

Risk Management Planning - Deciding how to approach , plan, and execute the risk management activities for a project

Risk Identification - Determining which risks might affect the project and documenting their characteristics.

Qualitative Risk Analysis - Prioritizing risks for subsequent further analysis or action by assessing and combining their probability of occurrence and impact

Quantitative Risk Analysis - Numerically analyzing the effect on overall project objectives of identified risks

Risk Response Planning - Developing options and actions to enhance opportunities , and to reduce threats to project objectives.

Risk Monitoring and Control - Tracking identified risks, monitoring residual risks, identifying new risks, executing risk response plans, and evaluating their effectiveness throughout the project life cycle.