Explanation

vacuum Tubes were replaced by Transistors.

Second-generation computers emerged with the development of Transistors.

The transistor was invented in 1947 by three scientists J. Bardeen, W.H Brattain and W. Shockley.

Explanation

He (RA) was born in 584 AD

He embraced martyrdom on 1st Muharram 23 AH.

Hazrat Umar Farooq was martyred on 24 A.H 1st Muharram

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Full name: Umar ibn Al-Khattāb

He was the second Rashidun caliph, ruling from August 634 until his assassination in 644 (13 to 24 Hijri).

The wife of Prophet Muhammad (PBUH) Hazrat Hafsah (رضہ) was the daughter of Umar Farooq (R.A)

Explanation

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Explanation

Penicillin works best on gram-positive bacteria by inhibiting peptidoglycan production, making the cells leaky and fragile

The cells burst open and are much easier for the immune system to break down, which helps the sick person heal more quickly.

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Related Question

Penicillin was discovered by Alexander Flaming In 1928

Penicillin was the first true antibiotic

Explanation

The Middle East Treaty Organization, also known as the Central Treaty Organization

CENTO was a military alliance of the Cold War.

Headquarters: Baghdad (1955 – 1958) Ankara (1958 – 1979)

Abbreviation: METO

CENTO was formed on 24 February 1955 by:

• Iran
• Iraq
• Pakistan
• Turkey
• and the United Kingdom.

CENTO alliance was dissolved on 16 March 1979

related question

Both Iran and Pakistan remained members of CENTO till?

 1979

Pakistan left CENTO in which year____?

 1979

When Pakistan signed the Baghdad pact, later called CENTO:

 23 September 1955

ND17-1-2023

Explanation

With technical support from UNDP, Pakistan has achieved SDG13 well before the 2030 deadline.

Sustainable Development Goal 13 is about climate action and is one of 17 Sustainable Development Goals established by the United Nations General Assembly in 2015.

Explanation

AIDS is a pandemic disease caused by the infection of (HIV), which damages the human immune system.

World AIDS Day is observed on 1 December since 1988.

Theme 2021: End Inequalities, End AIDS

Theme 2022: Equalize

Explanation

Lipid-rich components of bacterial cells present in the bacterial membrane.

Bacterial membranes present a large diversity of amphiphilic lipids.

Explanation

Television Radio Phones spread signals through Electromagnetic Waves

Sound travels at approximately 1,100 feet per second (766 miles per hour).

while

Radio waves travel at the speed of light, which is approximately 186,000 miles per second.

Explanation

GMT stands for Greenwich Mean Time,

It is the local clock time at Greenwich.

From 1884 until 1972