MCQs

Explanation
Trees as Environmental Buffers : Climate Regulation : Absorb CO₂, release O₂, and moderate temperatures. Soil Protection : Prevent erosion and maintain soil health. Water Cycle : Help in groundwater recharge and reduce flooding.

Explanation
The main idea of the solar system was proposed by the Polish astronomer Nicolaus Copernicus (1473-1543). who said that "the Sun is the centre of the Universe " and made the planets move around it in perfect circles (in his book entitled, "On the Revolution of the Celestial Spheres", written in Latin and published in 1543)

Explanation
The Punjab School Education Department (SED) on December 7, 2022 inaugurated first transgender school in Lahore to educate and teach skills to transpersons.

Explanation
The Treaty of Sèvres was signed on August 10, 1920, in Sevres, France. It was a 1920 treaty signed between the Allies of World War I and the Ottoman Empire.  The treaty ceded large parts of Ottoman territory to: France the United Kingdom Greece and Italy The 1923 Treaty of Lausanne, which superseded the Treaty of Sèvres, ended the conflict and saw the establishment of the Republic of Turkey.

Explanation
The battle of Trench was fought in fifth Hijr i The Battle of the Trench, also known as the Battle of Khandaq and the Battle of the Confederates.  It is 27-day -long defense . Muslims of Yathrib from Arab and Jewish tribes.

Explanation
Greece   Capital  is  Athens . Greece   Currency  is  Euro . The  Greek drachma  was the  basic unit  of  currency  in Greece until  2001 when it was  replaced  by the  euro . Greece   official language  is  Greek . Greece is  famous  for its Olive trees Greece  located is in  Continent   Europe . Greece  Primary  Religion  is  (Christianity) Orthodoxy . Greece   Head of Govt.  is  Prime Minister –Kyriakos Mitsotakis . Greece   Parliament  called  Chamber Of Deputies . Tricks for Remember EURO  BIG -FAN-PI –SMS Mind Trick : BIG FAN of PI and wished through SMS **BIG** B-Belgium I-Ireland G-Germany **FAN** F-France A-Austria N-Netherland **PI** P-Portugal I-Italy **SMS** S-Spain M-Malta S-Solvaria      

Explanation
This Act was passed by the Punjab Assembly on 24 May 2017 Assented to by the Governor of the Punjab on 29 May 2017 And was published in the Punjab Gazette  on 31 May 2017

Explanation
Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient.

Explanation
The Leaning Tower of Pisa, or simply, the Tower of Pisa, of Pisa Cathedral. It is known for its nearly four-degree lean, the result of an unstable foundation.  Height: 57 m Opened: 1372 Construction started: August 9, 1173 Architects: Diotisalvi, Guglielmo Province: Province of Pisa Materials: Marble, Rock Architectural style: Romanesque architecture

Explanation
Jizya is a poll tax historically imposed on non-Muslims in Muslim states. In India , Qutb-ud-din Aibak was the first to impose Jizya. The tax was abolished by Mughal ruler Akbar in the 16th century but reintroduced by Aurangzeb in the 17th century. Kharaj was a land tax imposed on non-Muslim cultivators and landlords.

Explanation
Rabia was born between 714 and 718 CE ( 95 and 98 Hijri) in Basra, Iraq . She belonged to the Qays tribe. She was an Arab Muslim saint, one of the earliest Sufi mystics

Explanation
Sadqain is also known as Syed Sadequain Ahmed Naqvi . He is renowned for being both a calligrapher and a painter. He is considered one of Pakistan's finest artists in Islamic calligraphy and modern painting. He is also recognized as the only artist in Pakistan to have received all four civilian awards such as" Nishan-i-Imtiaz Sitara-i-Imtiaz Tamgha-i-Imtiaz Pride of Performance

Explanation
Thomas O. Mensah is a Ghanaian-American chemical engineer and inventor. He joined Corning Glass Works in 1983 , working on fiber optics research in Sullivan Park, New York. Charles Kuen Kao is known as the "father of fiber optic communications." Shirley Ann Jackson made a breakthrough in fiber optics.

Explanation
The Treaty of Sèvres was signed on August 10, 1920, in Sevres, France. It was a 1920 treaty signed between the Allies of World War I and the Ottoman Empire.  The treaty ceded large parts of Ottoman territory to: France the United Kingdom Greece and Italy The 1923 Treaty of Lausanne, which superseded the Treaty of Sèvres, ended the conflict and saw the establishment of the Republic of Turkey.

Explanation
The battle of Trench was fought in fifth Hijr i The Battle of the Trench, also known as the Battle of Khandaq and the Battle of the Confederates.  It is 27-day -long defense . Muslims of Yathrib from Arab and Jewish tribes.

Explanation
Greece   Capital  is  Athens . Greece   Currency  is  Euro . The  Greek drachma  was the  basic unit  of  currency  in Greece until  2001 when it was  replaced  by the  euro . Greece   official language  is  Greek . Greece is  famous  for its Olive trees Greece  located is in  Continent   Europe . Greece  Primary  Religion  is  (Christianity) Orthodoxy . Greece   Head of Govt.  is  Prime Minister –Kyriakos Mitsotakis . Greece   Parliament  called  Chamber Of Deputies . Tricks for Remember EURO  BIG -FAN-PI –SMS Mind Trick : BIG FAN of PI and wished through SMS **BIG** B-Belgium I-Ireland G-Germany **FAN** F-France A-Austria N-Netherland **PI** P-Portugal I-Italy **SMS** S-Spain M-Malta S-Solvaria      

Explanation
This Act was passed by the Punjab Assembly on 24 May 2017 Assented to by the Governor of the Punjab on 29 May 2017 And was published in the Punjab Gazette  on 31 May 2017

Explanation
Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient.

Explanation
The Leaning Tower of Pisa, or simply, the Tower of Pisa, of Pisa Cathedral. It is known for its nearly four-degree lean, the result of an unstable foundation.  Height: 57 m Opened: 1372 Construction started: August 9, 1173 Architects: Diotisalvi, Guglielmo Province: Province of Pisa Materials: Marble, Rock Architectural style: Romanesque architecture

Explanation
Jizya is a poll tax historically imposed on non-Muslims in Muslim states. In India , Qutb-ud-din Aibak was the first to impose Jizya. The tax was abolished by Mughal ruler Akbar in the 16th century but reintroduced by Aurangzeb in the 17th century. Kharaj was a land tax imposed on non-Muslim cultivators and landlords.

Explanation
Rabia was born between 714 and 718 CE ( 95 and 98 Hijri) in Basra, Iraq . She belonged to the Qays tribe. She was an Arab Muslim saint, one of the earliest Sufi mystics

Explanation
Sadqain is also known as Syed Sadequain Ahmed Naqvi . He is renowned for being both a calligrapher and a painter. He is considered one of Pakistan's finest artists in Islamic calligraphy and modern painting. He is also recognized as the only artist in Pakistan to have received all four civilian awards such as" Nishan-i-Imtiaz Sitara-i-Imtiaz Tamgha-i-Imtiaz Pride of Performance

Explanation
Thomas O. Mensah is a Ghanaian-American chemical engineer and inventor. He joined Corning Glass Works in 1983 , working on fiber optics research in Sullivan Park, New York. Charles Kuen Kao is known as the "father of fiber optic communications." Shirley Ann Jackson made a breakthrough in fiber optics.

Explanation
The Treaty of Sèvres was signed on August 10, 1920, in Sevres, France. It was a 1920 treaty signed between the Allies of World War I and the Ottoman Empire.  The treaty ceded large parts of Ottoman territory to: France the United Kingdom Greece and Italy The 1923 Treaty of Lausanne, which superseded the Treaty of Sèvres, ended the conflict and saw the establishment of the Republic of Turkey.

Explanation
The battle of Trench was fought in fifth Hijr i The Battle of the Trench, also known as the Battle of Khandaq and the Battle of the Confederates.  It is 27-day -long defense . Muslims of Yathrib from Arab and Jewish tribes.

Explanation
Greece   Capital  is  Athens . Greece   Currency  is  Euro . The  Greek drachma  was the  basic unit  of  currency  in Greece until  2001 when it was  replaced  by the  euro . Greece   official language  is  Greek . Greece is  famous  for its Olive trees Greece  located is in  Continent   Europe . Greece  Primary  Religion  is  (Christianity) Orthodoxy . Greece   Head of Govt.  is  Prime Minister –Kyriakos Mitsotakis . Greece   Parliament  called  Chamber Of Deputies . Tricks for Remember EURO  BIG -FAN-PI –SMS Mind Trick : BIG FAN of PI and wished through SMS **BIG** B-Belgium I-Ireland G-Germany **FAN** F-France A-Austria N-Netherland **PI** P-Portugal I-Italy **SMS** S-Spain M-Malta S-Solvaria      

Explanation
This Act was passed by the Punjab Assembly on 24 May 2017 Assented to by the Governor of the Punjab on 29 May 2017 And was published in the Punjab Gazette  on 31 May 2017

Explanation
Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient.

Explanation
The Leaning Tower of Pisa, or simply, the Tower of Pisa, of Pisa Cathedral. It is known for its nearly four-degree lean, the result of an unstable foundation.  Height: 57 m Opened: 1372 Construction started: August 9, 1173 Architects: Diotisalvi, Guglielmo Province: Province of Pisa Materials: Marble, Rock Architectural style: Romanesque architecture

Explanation
Jizya is a poll tax historically imposed on non-Muslims in Muslim states. In India , Qutb-ud-din Aibak was the first to impose Jizya. The tax was abolished by Mughal ruler Akbar in the 16th century but reintroduced by Aurangzeb in the 17th century. Kharaj was a land tax imposed on non-Muslim cultivators and landlords.

Explanation
Rabia was born between 714 and 718 CE ( 95 and 98 Hijri) in Basra, Iraq . She belonged to the Qays tribe. She was an Arab Muslim saint, one of the earliest Sufi mystics

Explanation
Sadqain is also known as Syed Sadequain Ahmed Naqvi . He is renowned for being both a calligrapher and a painter. He is considered one of Pakistan's finest artists in Islamic calligraphy and modern painting. He is also recognized as the only artist in Pakistan to have received all four civilian awards such as" Nishan-i-Imtiaz Sitara-i-Imtiaz Tamgha-i-Imtiaz Pride of Performance

Explanation
Thomas O. Mensah is a Ghanaian-American chemical engineer and inventor. He joined Corning Glass Works in 1983 , working on fiber optics research in Sullivan Park, New York. Charles Kuen Kao is known as the "father of fiber optic communications." Shirley Ann Jackson made a breakthrough in fiber optics.

Explanation
The Treaty of Sèvres was signed on August 10, 1920, in Sevres, France. It was a 1920 treaty signed between the Allies of World War I and the Ottoman Empire.  The treaty ceded large parts of Ottoman territory to: France the United Kingdom Greece and Italy The 1923 Treaty of Lausanne, which superseded the Treaty of Sèvres, ended the conflict and saw the establishment of the Republic of Turkey.

Explanation
The battle of Trench was fought in fifth Hijr i The Battle of the Trench, also known as the Battle of Khandaq and the Battle of the Confederates.  It is 27-day -long defense . Muslims of Yathrib from Arab and Jewish tribes.

Explanation
Greece   Capital  is  Athens . Greece   Currency  is  Euro . The  Greek drachma  was the  basic unit  of  currency  in Greece until  2001 when it was  replaced  by the  euro . Greece   official language  is  Greek . Greece is  famous  for its Olive trees Greece  located is in  Continent   Europe . Greece  Primary  Religion  is  (Christianity) Orthodoxy . Greece   Head of Govt.  is  Prime Minister –Kyriakos Mitsotakis . Greece   Parliament  called  Chamber Of Deputies . Tricks for Remember EURO  BIG -FAN-PI –SMS Mind Trick : BIG FAN of PI and wished through SMS **BIG** B-Belgium I-Ireland G-Germany **FAN** F-France A-Austria N-Netherland **PI** P-Portugal I-Italy **SMS** S-Spain M-Malta S-Solvaria      

Explanation
This Act was passed by the Punjab Assembly on 24 May 2017 Assented to by the Governor of the Punjab on 29 May 2017 And was published in the Punjab Gazette  on 31 May 2017

Explanation
Diffusion refers to the process by which molecules intermingle as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient.

Explanation
The Leaning Tower of Pisa, or simply, the Tower of Pisa, of Pisa Cathedral. It is known for its nearly four-degree lean, the result of an unstable foundation.  Height: 57 m Opened: 1372 Construction started: August 9, 1173 Architects: Diotisalvi, Guglielmo Province: Province of Pisa Materials: Marble, Rock Architectural style: Romanesque architecture

Explanation
Jizya is a poll tax historically imposed on non-Muslims in Muslim states. In India , Qutb-ud-din Aibak was the first to impose Jizya. The tax was abolished by Mughal ruler Akbar in the 16th century but reintroduced by Aurangzeb in the 17th century. Kharaj was a land tax imposed on non-Muslim cultivators and landlords.

Explanation
Rabia was born between 714 and 718 CE ( 95 and 98 Hijri) in Basra, Iraq . She belonged to the Qays tribe. She was an Arab Muslim saint, one of the earliest Sufi mystics

Explanation
Sadqain is also known as Syed Sadequain Ahmed Naqvi . He is renowned for being both a calligrapher and a painter. He is considered one of Pakistan's finest artists in Islamic calligraphy and modern painting. He is also recognized as the only artist in Pakistan to have received all four civilian awards such as" Nishan-i-Imtiaz Sitara-i-Imtiaz Tamgha-i-Imtiaz Pride of Performance

Explanation
Thomas O. Mensah is a Ghanaian-American chemical engineer and inventor. He joined Corning Glass Works in 1983 , working on fiber optics research in Sullivan Park, New York. Charles Kuen Kao is known as the "father of fiber optic communications." Shirley Ann Jackson made a breakthrough in fiber optics.

Explanation
Fungi: Mushrooms are a type of fungi. Algae: Mostly aquatic and photosynthetic, not related to mushrooms. Bacteria: Microscopic organisms, not related to mushrooms. Protozoa: Single-celled organisms, unlike multicellular mushrooms.

Explanation
Pitch is the perception of how high or low a sound is, which depends on the frequency of the sound wave. Higher frequency → Higher pitch , Lower frequency → Lower pitch.

Explanation
Sound travels as a longitudinal wave, where particles vibrate parallel to the direction of wave motion. In contrast, light is a transverse wave, with vibrations perpendicular to the direction of propagation.

Explanation
Mass is a measure of an object's inertia — its resistance to changes in motion. Unlike weight (which depends on gravity), mass is an intrinsic property and directly related to inertia.

Explanation
A stone thrown from a height follows a projectile motion, which traces a parabolic path under gravity. This occurs due to the combination of constant horizontal velocity and accelerated vertical motion .

Explanation
Tungsten is used in bulb filaments because it has a very high melting point (~3422°C). It can withstand high temperatures without melting, making it ideal for glowing filaments.

Explanation
Neutron is a neutral particle, meaning it has no electric charge . Because of this, it didn't respond to electric or magnetic fields , making its detection difficult and late compared to protons and electrons.

Explanation
The given sentence is in past perfect passive voice : "had been bribed." Active voice of past perfect : Subject + had + past participle, hence " They had bribed the officer ."

Explanation
Why has the mirror been broken by you? This is a present perfect interrogative sentence in passive voice. Structure : Why + has/have + object + been + past participle + by subject.

Explanation
The teacher said that two and two is four. Universal truths or facts remain unchanged in indirect speech. Since " Two and two is four " is a mathematical fact, the verb " is " stays the same.

Explanation
Fungi: Mushrooms are a type of fungi. Algae: Mostly aquatic and photosynthetic, not related to mushrooms. Bacteria: Microscopic organisms, not related to mushrooms. Protozoa: Single-celled organisms, unlike multicellular mushrooms.

Explanation
Pitch is the perception of how high or low a sound is, which depends on the frequency of the sound wave. Higher frequency → Higher pitch , Lower frequency → Lower pitch.