General Science Class 4 MCQs MCQs - General Science Practice | PakExamPoint

Practise General Science Class 4 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.

General Science Class 4 MCQs MCQs and revision practice

Study General Science Class 4 MCQs through multiple-choice questions in General Science. This subtopic contains 296 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these General Science Class 4 MCQs MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.

Continue your revision with related topics: Biology Class 10th MCQs MCQs, Biology Class 9th MCQs MCQs, Chemistry Class 10th MCQs MCQs, Chemistry Class 9th MCQs MCQs, General Science Class 10 MCQs MCQs, General Science Class 5 MCQs MCQs, General Science Class 6 MCQs MCQs, General Science Class 7 MCQs MCQs.

Return to all General Science topics to choose your next area of study. Read the MCQ study guide to plan your revision, or try a General Science practice quiz.

General Science Class 4 MCQs: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

161. Which mineral plays a role in developing bones and in metabolic processes?

کون سا معدنیات ہڈیوں کی نشوونما اور میٹابولک عمل میں کردار ادا کرتا ہے؟

Check answer and explanation

Answer: Magnesium

Explanation Magnesium plays a crucial role in: Developing and maintaining strong bones and teeth Regulating metabolic processes, such as energy production and glucose metabolism Supporting muscle and nerve function Maintaining healthy blood pressure and heart rhythm

162. Which is a hollow tube in your chest?

آپ کے سینے میں کھوکھلی ٹیوب کون سی ہے؟

Check answer and explanation

Answer: Trachea

Explanation The trachea (windpipe) is a hollow tube in the chest. It connects the throat (pharynx) to the lungs , allowing air to pass through during breathing.

163. The ________ work together to support your body and move it forward.

آپ کے جسم کو سہارا دینے اور اسے آگے بڑھانے کے لیے ________ مل کر کام کرتے ہیں۔

Check answer and explanation

Answer: Skeleton and Muscle

Explanation The skeleton and muscles work together to support your body and move it forward. The skeleton provides the structural framework and support. The muscles contract and relax to move the bones and facilitate movement.

164. Which are responsible for bitting, chewing, crushing and grinding the food we eat?

جو کھانا ہم کھاتے ہیں اسے کاٹنے، چبانے، کچلنے اور پیسنے کے ذمہ دار کون ہیں؟

Check answer and explanation

Answer: Teeth

Explanation Teeth are responsible for biting, chewing, crushing, and grinding food into smaller pieces , making it easier to swallow and digest.

165. Which of the following liquids is used in the clinical thermometer?

کلینکل تھرمامیٹر میں درج ذیل میں سے کون سا مائع استعمال ہوتا ہے؟

Check answer and explanation

Answer: Mercury

Explanation Mercury is a silvery-white liquid metal that was traditionally used in clinical thermometers due to its high coefficient of expansion. It allowing for accurate temperature measurements.

166. Kwashiorkor and marasmus are diseases caused by deficiency of which one of the following?

کوواشیورکور اور ماراسمس بیماریوں کی وجہ سے ہیں جس کی وجہ سے مندرجہ ذیل میں سے کس کی کمی ہے؟

Check answer and explanation

Answer: Protein

Explanation Kwashiorkor and marasmus are caused by protein deficiency , leading to severe malnutrition. Kwashiorkor mainly shows swelling (edema). Marasmus causes extreme weight loss and weakness.

167. Teeth are similar to bone and contain a mineralized matrix called?

دانت ہڈی کی طرح ہوتے ہیں اور ان میں موجود معدنی مادہ والی تہہ کو کیا کہتے ہیں؟

Check answer and explanation

Answer: Enamel

Explanation Enamel is the hard , mineralized outer layer of teeth . It protects the inner parts of the tooth from damage and decay. Enamel is the hardest substance in the human body. It is mainly made of calcium phosphate . Additional information : Incisors (8) – used for cutting food Canines (4) – used for tearing food Premolars (8) – help crush and grind food Molars (12) – grind food during chewing Total adult teeth = 32 Last verified on 13-03-2026

168. The Earth takes ______ to revolve around the sun.

زمین سورج کے گرد گھومنے کے لیے ______ لیتی ہے۔

Check answer and explanation

Answer: 365 days and 6 hours

Explanation The sun rises in the East and sets in the West. which means that the Earth is rotating from West to East. Earth revolves in orbit around the Sun in 365 days, 6 hours, 9 minutes. with reference to the stars, at a speed ranging from 29.29 to 30.29 km/s. The 6 hours, 9 minutes add up to about an extra day every fourth year, which is designated a leap year, with the extra day added as February 29th.

169. Knowledge about the natural world that is based on facts learned through experiments and observations is called?

فطری دنیا کے بارے میں علم جو تجربات اور مشاہدات کے ذریعے سیکھے گئے حقائق پر مبنی ہو اسے کہتے ہیں؟

Check answer and explanation

Answer: Science

Explanation Science is the systematic study of the nature and behavior of the material and physical universe , based on observation, experiment, and measurement, and the formulation of laws to describe these facts in general terms.

170. The boiling point of water on a centigrade scale is?

سینٹی گریڈ پیمانے پر پانی کا ابلتا نقطہ کیا ہے؟

Check answer and explanation

Answer: 100°C

Explanation The freezing point of water is 0°C (zero degrees Centigrade). The boiling point of water on the Centigrade scale ( also known as the Celsius scale ) 100°C (one hundred degrees Centigrade).

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