Explanation

In general word demi official letter explanation is a letter that communicates official e-mail along with personal news is called a demi-official, it is also known as Demi government letter.

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Explanation

HIV is a virus spread through certain fluids in body that attacks the body’s immune system. 

HIV stands for Human immunodeficiency virus

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CELTA is a widely recognized qualification for teaching English as a foreign language

It stands for Certificate in Teaching English to Speakers of Other Languages.

This qualification is awarded by Cambridge University

Explanation

CPI stands for Consumer Price Index.

It measures the average change over time in the prices paid by consumers for goods and services.

It is often used to assess inflation and cost of living.

Explanation

The internal rate of return stands for IRR

It is the interest rate (also known as the discount rate) 

The IRR rule is used as a guideline for deciding whether to proceed with a project

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GIS is a system designed to capture, store, manipulate, analyze, manage, and present geographic data.

It is commonly used in urban planning, environmental science, and navigation.

Explanation

CCI stands for Council of Common Interests.

CCI is a constitutional body set up under Article 153 of the Constitution of Islamic Republic of Pakistan, 1973.

AGM 08-01-2023

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POA stands for Pakistan Olympic Association, which is the National Olympic Committee (NOC) of Pakistan.

It is responsible for promoting and developing sports in Pakistan and sending Pakistani athletes to the Olympic Games.

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Artificial intelligence is intelligence demonstrated by machines, as opposed to natural intelligence displayed by animals including humans.

This is used in 5th generation computers

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