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General Knowledge QUESTION #8809

Question 4661

Which South Asian country has the highest ratio of urban population?

India
Sri Lanka
Pakistan✔️
Nepal

Correct Answer Logic:

Pakistan has a high urbanization rate in South Asia.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3270

Question 4662

'Vasoconstriction' results in:

Decreased blood pressure
Increased peripheral resistance and blood pressure✔️
Increased blood flow to the skin
Cooling of the body

Correct Answer Logic:

Narrowing the vessels increases the pressure of the fluid inside.

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Education QUESTION #6887

Question 4663

The concept of 'differentiated instruction' in classroom management refers MOST directly to which of the following?

Teaching advanced students separately in a gifted program to reduce disruption in the main classroom
Preparing tasks at multiple levels of complexity so that all learners — basic, intermediate, and advanced — can engage meaningfully✔️
Varying the disciplinary approach based on the severity of the behavioral infraction
Assigning different roles in group work based on students' social skills profiles

Correct Answer Logic:

Differentiated instruction involves designing learning materials at multiple levels of difficulty so that students of varying ability all experience appropriately challenging and achievable tasks. This practice reduces classroom disruption because students are less likely to misbehave when they are neither bored by over-simplicity nor frustrated by excessive difficulty.

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Mathematics QUESTION #6044

Question 4664

Let $O$ be the vertex and $Q$ any point on the parabola $x^2=8y$. If point $P$ divides segment $OQ$ internally in the ratio $1:3$, find the locus of $P$.

$x^2=y$
$y^2=x$
$y^2=2x$
$x^2=2y$✔️

Correct Answer Logic:

Let $Q=(4t, 2t^2)$ be a point on $x^2=8y$ (using parametrization $x=4t, y=2t^2$). $O=(0,0)$.

$P$ divides $OQ$ in ratio $1:3$: $P=\left(\frac{1\cdot4t+3\cdot0}{4},\frac{1\cdot2t^2+3\cdot0}{4}\right)=\left(t,\frac{t^2}{2}\right)$

Let $P=(h,k)$: $h=t$ and $k=\frac{t^2}{2}=\frac{h^2}{2}$

So $h^2=2k$, i.e., the locus is $x^2=2y$.

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Math Physics Chemistry Biology QUESTION #549

Question 4665

Which of the following has rootless sporophytes?

Psilopsida✔️
Tracheophyta
Lycopsida
Sphenopsida

Correct Answer Logic:

Psilopsida (whisk ferns) have rootless sporophytes

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3364

Question 4666

'Cold Sterilization' refers to the use of:

Freezers
Radiation or chemicals instead of heat✔️
Boiling water
Ice cubes

Correct Answer Logic:

It is used for items that melt or degrade when heated.

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Economics QUESTION #1694

Question 4667

Among the following, which one is categorically NOT a component of Gross Domestic Product (GDP) calculated by the expenditure approach?

Consumption expenditure by households
Gross private domestic investment by firms
Government purchases of goods and services
The prevailing rate of unemployment✔️

Correct Answer Logic:

The expenditure approach to GDP is: $\text{GDP} = C + I + G + (X - M)$, where $C$ = household consumption, $I$ = gross private investment, $G$ = government purchases, and $(X-M)$ = net exports. The rate of unemployment is a labour market indicator and is not a component of GDP. It may be correlated with GDP (via Okun's Law) but is not included in its calculation.

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Physical Education QUESTION #6800

Question 4668

In the context of the philosophy of 'Dualism', what is the primary challenge for Physical Education specialists?

Justifying the inclusion of physical activity in a curriculum that prioritizes the mind✔️
Proving that physical strength is superior to intellectual capacity
Balancing the budget between sports equipment and textbooks
Ensuring that all students achieve the same level of athletic performance

Correct Answer Logic:

Dualism separates the mind and body; physical educators often struggle to prove that 'bodily' training has 'intellectual' or educational value in such a framework.

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MCQs Section QUESTION #5027

Question 4669

ابلیس کی مجلسِ شوریٰ کس شاعر کی نظم ہے؟

ناصر کاظمی
مولانا ظفر علی خان
علامہ اقبال✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

ابلیس کی مجلسِ شوریٰ علامہ اقبال کی مشہور فلسفیانہ نظم ہے جو ارمغانِ حجاز میں شامل ہے۔

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Math Physics Chemistry Biology QUESTION #7762

Question 4670

Natural killer (NK) cells are directly activated by which substance?

Free radicals
Hydrogen peroxide
Interferons✔️
Oxygen

Correct Answer Logic:

Interferons (produced in response to viral infections) activate NK cells, enhancing their cytotoxic activity against virus-infected cells and tumor cells.

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Chemistry QUESTION #5524

Question 4671

Match the following: Column I — (A) Allosteric effect, (B) Competitive inhibitor, (C) Receptor, (D) Poison; Column II — (P) Molecule binding to the active site, (Q) Molecule crucial for body communication, (R) Molecule binding to a site other than the active site, (S) Molecule binding covalently to the enzyme

$(A)\to(R);\ (B)\to(P);\ (C)\to(Q);\ (D)\to(S)$✔️
$(A)\to(P);\ (B)\to(R);\ (C)\to(Q);\ (D)\to(S)$
$(A)\to(R);\ (B)\to(P);\ (C)\to(S);\ (D)\to(Q)$
$(A)\to(P);\ (B)\to(R);\ (C)\to(S);\ (D)\to(Q)$

Correct Answer Logic:

Allosteric effect: A molecule binds to a site other than the active site, altering enzyme activity → (R). Competitive inhibitor: A molecule structurally similar to the substrate binds the active site → (P). Receptor: Molecules (like hormones/neurotransmitters) crucial for body communication bind receptors → (Q). Poison: Poisons like heavy metal ions bind enzymes covalently and permanently inactivate them → (S).

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Chemistry QUESTION #438

Question 4672

The process of filtration is used to separate __________ particles from liquids.

Radial
Angular
Insoluble✔️
Soluble

Correct Answer Logic:

Filtration separates insoluble particles

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Social Studies QUESTION #10023

Question 4673

Who famously stated, 'One is not born, but rather becomes, a woman'?

Simone de Beauvoir✔️
Luce Irigaray
Betty Frieden
None of these

Correct Answer Logic:

This is a well-known statement by Simone de Beauvoir from 'The Second Sex'.

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Reading and Writing (Module-1) QUESTION #5335

Question 4674

The 1920s Harlem Renaissance was a ______ period of artistic and intellectual growth for African Americans, producing influential works in literature, music, and art. Which choice completes the text with the most logical and precise word?

prolific✔️
stagnant
brief
unnoticeable

Correct Answer Logic:

'Prolific' (highly productive) describes a period of significant growth and many works.

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Political Science QUESTION #6688

Question 4675

The 18th Amendment to the Constitution of Pakistan (2010) primarily focused on:

Presidential Powers
Provincial Autonomy✔️
Judicial Appointments
None of these

Correct Answer Logic:

The 18th Amendment significantly increased provincial autonomy and removed the President's power to dissolve Parliament.

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Physics QUESTION #1001

Question 4676

A force $\vec{F} = 2\hat{i}+b\hat{j}+\hat{k}$ is applied on a particle and it undergoes displacement $\hat{i}-2\hat{j}-\hat{k}$. If work done is zero, the value of $b$ is:

$\dfrac{1}{2}$✔️
2
$\dfrac{1}{3}$

Correct Answer Logic:

$W = \vec{F}\cdot\vec{d} = (2)(1)+(b)(-2)+(1)(-1) = 2-2b-1 = 1-2b = 0 \Rightarrow b = \dfrac{1}{2}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3147

Question 4677

The 'Retina' contains photoreceptor cells known as:

Iris and Pupil
Rods and Cones✔️
Lens and Cornea
Sclera and Choroid

Correct Answer Logic:

Rods detect light/dark; Cones detect color.

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Chemistry QUESTION #450

Question 4678

__________ hybridization leads to a regular tetrahedral structure.

sp?✔️
sp?
sp
All of these

Correct Answer Logic:

sp? hybridization gives tetrahedral geometry

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English QUESTION #8515

Question 4679

The opposite of 'amateur' is:

Mature
Professional✔️
Unskilled
Trained

Correct Answer Logic:

Amateur is non-professional; opposite is professional.

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Physics QUESTION #4381

Question 4680

The unit of temperature coefficient of resistivity is:

$\dfrac{1}{C}$
$\dfrac{1}{K}$✔️
$\dfrac{1}{A}$
$\dfrac{1}{\Omega}$

Correct Answer Logic:

Temperature coefficient of resistivity $\alpha$ is defined by $\rho = \rho_0(1 + \alpha \Delta T)$. For dimensional consistency, $\alpha = \dfrac{\Delta\rho}{\rho_0 \cdot \Delta T}$, so its unit is $K^{-1}$ or $\dfrac{1}{K}$.

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