Explanation

Water has a maximum density of 4 degrees Celsius.

while

Water freezes at 0 degrees Celsius and 32 degrees Fahrenheit.

Explanation

• Surface Coverage: 71% is water, mostly saltwater.
• Ocean Percentage: Oceans hold ~96.5% of the total water.
• Freshwater vs. Saltwater: 96.5% is saline (oceans), and only a small fraction is freshwater.

Last updated by NA on 28April 2026

Explanation

 F1 function key is used for opening help.

Some of the top shortcut keys in Microsoft Word are:

Ctrl + S: Save

Ctrl + C: Copy

Ctrl + X: Cut

Ctrl + V: Paste

Ctrl + Z: Undo

Ctrl + Y: Redo

Ctrl + B: Bold

Ctrl + I: Italic

Ctrl + U: Underline

Ctrl + F: Find

Explanation

Johannes Erwin Eugen Rommel was a German general and a propaganda icon during World War II.

Popularly known as the Desert Fox,

He served as field marshal in the Wehrmacht of Nazi Germany,

Explanation

The Jalali calendar was developed in the 11th century by Omar Khayyam.

The Jalali Calendar, also known as the Jalali or Persian calendar, was introduced in 1079 AD. 

Explanation

Dynamite was invented by Swedish chemist Alfred Nobel in the 1860s.

Alfred Nobel the first safely manageable explosive stronger than black powder.

Explanation

The Yemeni Crisis began with the 2011–12 revolution against President Ali Abdullah Saleh, who had led Yemen for more than three decades

key events in the Yemeni Crisis:

2011 — Saleh's Resignation: 

Protests led President Ali Abdullah Saleh to resign, transferring power to Abdrabbuh Mansur Hadi.

2014 — Houthi Takeover: 

In September, Houthi rebels seized Sana'a, ousting Hadi's government.

2015 — Saudi-Led Intervention:  

A Saudi-led coalition intervened in March to support Hadi, escalating the conflict.

2017 — Saleh's Death: 

The Houthis killed former President Saleh in December after seeking to reconcile with the coalition.

2022 — UN Ceasefire: 

A UN-brokered ceasefire in April provided temporary relief, but the conflict remains unresolved.

Explanation

 In 1952, the two boards were amalgamated into what we now call as Inter Services Selection Board, commonly known as ISSB and it was established at Kohat.

Explanation

The annual number of live births per 1,000 people is called the Crude Birth rate

ہر ایک ہزار افراد کی سالانہ پیدائش کی شرح کو خام پیدائش کی شرح کہا جاتا ہے۔

the annual number of deaths per 1,000 people is called the Crude death rate

ہر ایک ہزار افراد کی سالانہ اموات کو خام اموات کی شرح کہا جاتا ہے۔

Explanation