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.

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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.

231. Which mineral plays an important role in the distribution of water in the body?

کون سا معدنیات جسم میں پانی کی تقسیم میں اہم کردار ادا کرتا ہے؟

Check answer and explanation

Answer: Sodium

Explanation Sodium plays a crucial role in regulating the distribution of water in the body, as it helps control the amount of fluid in cells, tissues, and organs . It does this by: Regulating fluid balance and blood pressure Maintaining proper osmotic balance Facilitating the transport of water and nutrients into cells Sodium helps distribute water throughout the body, which is essential for various bodily functions, such as : Maintaining healthy blood pressure Supporting nerve and muscle function Regulating body temperature Facilitating waste removal

232. We could destroy the Dengue Mosquito by introducing a special Mosquito Eating ______in the water bodies.

ہم پانی کے ذخائر میں ایک خاص مچھر کھانے والے ______ متعارف کر کے ڈینگی مچھر کو ختم کر سکتے ہیں۔

Check answer and explanation

Answer: Fish

Explanation Introducing mosquito-eating fish , such as guppies or mosquitofish (Gambusia affinis), into water bodies can help control mosquito populations , including the dengue mosquito (Aedes aegypti). These fish feed on mosquito larvae and help prevent them from developing into adult mosquitoes.

233. Which type of vitamin strengthens the immune system and prevents from a disease called scurry?

کس قسم کا وٹامن مدافعتی نظام کو مضبوط کرتا ہے اور اسکری نامی بیماری سے بچاتا ہے؟

Check answer and explanation

Answer: Vitamin C

Explanation Vitamin C is essential for : Strengthening the immune system and Preventing Scurvy, a disease characterized by : Fatigue and weakness Bleeding gums and loose teeth Joint pain and swelling Poor wound healing Vitamin C is important for: Collagen production Iron absorption Antioxidant functions Supporting white blood cell function

234. Animal and Plant bodies contain ________ of water.

جانوروں اور پودوں کے اجسام میں ________ پانی ہوتا ہے۔

Check answer and explanation

Answer: 70%

Explanation Both animal and plant bodies contain a significant percentage of water. 70% is a commonly cited estimate for many living organisms.

235. A ______ is an inclined plane wrapped around a cylinder, used to fasten objects.

ایک مائل طیارہ ہے جسے سلنڈر کے گرد لپیٹا جاتا ہے، جو اشیاء کو باندھنے کے لیے استعمال ہوتا ہے۔ ______

Check answer and explanation

Answer: Screw

Explanation A screw is a simple machine that is an inclined plane wrapped around a cylinder. It is used to fasten objects together , and it is used in: Fastening parts together Holding things in place Providing a secure grip Examples include: Wood screws (used in woodworking and construction) Machine screws (used in machinery and equipment) Self-tapping screws (used in plastic and metal) Bolts (used in heavy-duty applications) Lag screws (used in heavy construction) Deck screws (used in decking and outdoor construction) Drywall screws (used in drywall installation) Anchor screws (used in concrete and masonry)

236. Speed of any object can be changed by?

کسی بھی چیز کی رفتار کو کیسے تبدیل کیا جا سکتا ہے؟

Check answer and explanation

Answer: Force

Explanation Force is the only option that can change an object's speed. According to Newton's second law of motion , force is directly related to an object's acceleration, which is the change in speed over time.

237. The ______ are pointed teeth that are adopted for tearing and slashing.

وہ کون سے دانت ہیں جو کاٹنے اور پھاڑنے کے لیے موزوں ہوتے ہیں؟

Check answer and explanation

Answer: Canines

Explanation The Canines are pointed teeth that are adapted for tearing and slashing . Teeth are specialized structures in the mouth for biting, tearing, and chewing food . Humans have different types of teeth: incisors, canines, premolars, and molars. Humans have 4 canines (2 upper, 2 lower) used for tearing meat . Last verified on 16-03-2026

238. The food you eat, the sweets you eat and the drinks you drink, all go down to your?

آپ جو کھانا کھاتے ہیں، جو مٹھائیاں کھاتے ہیں اور جو مشروبات پیتے ہیں، سب آپ کے پاس _______ میں جاتے ہیں؟

Check answer and explanation

Answer: Stomach

Explanation When you swallow food, sweets, or drinks, they pass through the esophagus and enter the stomach. Where they are mixed with digestive enzymes and acids to break down proteins, carbohydrates, and fats.

239. Which mineral is the present in liver, dark green vegetable, red meat, flour, egg yolk, dried fruit, nuts, dried beans, peas, raisins, poultry, fish etc?

جگر، گہرے سبز سبزیوں، سرخ گوشت، آٹا، انڈے کی زردی، خشک میوہ جات، گری دار میوے، خشک پھلیاں، مٹر، کشمش، مرغی، مچھلی وغیرہ میں کون سا معدنیات موجود ہے؟

Check answer and explanation

Answer: Iron

Explanation Iron is an essential mineral found in various foods, including: Liver Dark green vegetables (spinach, kale, broccoli) Red meat Flour (enriched) Egg yolk Dried fruit ( apricots, prunes, raisins) Nuts (pistachios, almonds) Dried beans (lentils, chickpeas) Peas Poultry (chicken, turkey) Fish (tuna, salmon) Iron is crucial for : Oxygen transport in the blood Healthy red blood cells Immune function Brain function Physical performance

240. Dietary fiber, found mainly in fruits, vegetables, whole grains and legumes, is probably best known for its ability to prevent or relieve?

غذائی ریشہ، جو بنیادی طور پر پھلوں، سبزیوں، سارا اناج اور پھلوں میں پایا جاتا ہے، شاید اس کی روک تھام یا آرام کرنے کی صلاحیت کے لیے سب سے زیادہ جانا جاتا ہے؟

Check answer and explanation

Answer: All of these

Explanation Dietary fiber has numerous health benefits, including: Preventing or relieving Constipation : Fiber helps promote regular bowel movements and prevents constipation by adding bulk to stool and softening it. Lowering diabetes risk : Soluble fiber, found in foods like fruits, vegetables, and legumes, can slow sugar absorption and improve insulin sensitivity , reducing the risk of developing type 2 diabetes. Reducing Heart disease risk : Fiber helps lower cholesterol levels, blood pressure, and inflammation, all of which can contribute to heart disease.

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