Explanation

Blood has a pH level of around 7.3, which is closest to neutral (pH 7).

Explanation

Cuba is known as the "Sugar Bowl of the World"

Due to its historical role as a major sugar exporter and its large-scale sugar production. 

It is an island country int the Caribbean

It is located where the northern Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean meet.

Capital: Havana

Currency: Cuban Peso

Official language: Spanish

Continent: North America

Government: Republic, Unitary state, Socialist state

Explanation

• Structure of DNA was discovered by James Watson and Francis Crick in 1953.
• They discovered the double-helix structure of DNA using X-ray crystallography data.
• Their discovery revealed the double-helix structure of DNA, where two complementary strands are twisted together with sugar and phosphate molecules, and the nitrogenous bases (adenine, thymine, cytosine, and guanine) pair in a specific manner.

Explanation

Ctrl + = is the shortcut key for Subscript in many word processors, lowering the selected text below the baseline.

Ctrl + Shift + = is used for Superscript, which raises the selected text above the baseline.

Explanation

The default format would be "letter" which is the standard size for a page.

This size is easy to work with and print

since it first into any printer or copier.

standard size for a page 8.5 x 11 inches.

Explanation

A derived quantity is obtained from fundamental quantities (like mass, length, and time).

Force = Mass × Acceleration (Newton’s Second Law), so it is derived from mass, length, and time.

Explanation

A calorimeter is an instrument used to measure the amount of heat absorbed or released during a chemical reaction or physical change.

It is essential for studying thermodynamic properties 

Explanation

Sulfur dioxide (SO₂) and nitrogen dioxide (NO₂) are primary precursors of acid rain.

Acid rain is a consequence of these atmospheric pollutants reacting with water, oxygen, and other chemicals to form acidic compounds. 

These acids contribute to environmental damage.

Explanation

The act of slaughtering a small animal to compensate for missing a Wajib act during Hajj or Umrah is called Damm.

Damm is also known as Fidyah. 

Explanation

• Murree city is located in the Punjab province of Pakistan.
• It is a mountain resort town
• Located in the Galyat region of the Pir Panjal Range.
• District Rawalpindi Tehsil Muree
• It has an average altitude of 2,291 metres
• it was first identified as a potential hill station by Major James Abbott in 1847

Last updated on 06-March-2026