Practise General Science Class 7 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Study General Science Class 7 MCQs through multiple-choice questions in General Science. This subtopic contains 255 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 7 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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پانی میں نمک کی مقدار زیادہ ہوتی ہے؟ _____
Answer: Marine water
Explanation Marine water is water that contains a high amount of salt, typically above 30% salinity. This includes oceans, seas, and other saltwater bodies.
عام بلی کے کان کی قابل سماعت حد ______ ہے؟
Answer: 45 Hz to 64kHz
Explanation Cats have a unique audible range that is adapted to their hunting and communication needs. They can hear sounds in the range of 45 Hz to 64,000 Hz , which is wider than humans and dogs.
دن کے وقت، زمین کے اوپر کی ہوا اپنی کثافت کو گرم کرتی ہے ____؟
Answer: Decrease
Explanation When the air above the land is heated during the daytime , its density decreases. This is because warm air expands and becomes less dense than cold air.
باغ میں پودے جو عام طور پر ______ کے ذریعہ جرگ ہوتے ہیں وہ چمکتے رنگ کے پھول ہوتے ہیں۔
Answer: Insects
Explanation Insects like bees, butterflies, moths, and beetles are important pollinators of plants in gardens. They visit flowers to collect nectar and pollen, and in the process, transfer pollen from one flower to another, allowing for fertilization to occur.
پانی اور معدنی نمکیات _____ میں جذب ہوتے ہیں؟
Answer: Large Intestine
Explanation The large intestine (colon) is responsible for absorbing: Water Mineral salts (electrolytes) Some vitamins (like vitamin K and biotin)
جسم کے اندر ذرّات کے تصادم اور الیکٹران کی حرکت سے اندرونی توانائی کی منتقلی کو _____ کہتے ہیں؟
Answer: Conduction
Explanation Conduction is the transfer of internal energy (heat) through direct contact between particles or molecules. Including collisions and movements of electrons within a substance. This process occurs in solids.
ایک ماحولیاتی نظام میں کئی فوڈ چینز مل کر ایک نیٹ ورک بناتے ہیں جسے ____ کہا جاتا ہے؟
Answer: Food Web
Explanation A food web is a network of multiple food chains that overlap and connect. It showing the complex feeding relationships between different species in an ecosystem. It's a web-like structure that illustrates the various pathways that energy and nutrients flow through the ecosystem.
مندرجہ ذیل میں سے کون سا آئسوٹوپ ایک خاص قسم کے علاج کے ذریعے کینسر کے خلیوں کو مارنے کے لیے استعمال کیا جاتا ہے، جسے ریڈیو تھراپی کہا جاتا ہے؟
Answer: Copper - 64
Explanation Copper - 64 isotope is used to kill cancer cells. By a particular type of treatment , known as radiotherapy.
نیبولے ________ سے بنے ہیں؟
Answer: Hydrogen (97%) and Helium (3%)
Explanation Nebulae are primarily made up of Hydrogen (97%) and Helium (3%). These vast clouds of gas and dust serve as the birthplace of stars, with hydrogen being the most abundant element in the universe.
ہیرے میں آواز کی رفتار _____ ہے؟
Answer: 12000 m/s
Explanation The speed of sound in diamond is approximately 12,000 meters per second (m/s). It is one of the fastest speeds of sound among all materials. The speeds of sound in different materials: Air: 343 m/s Water: 1433 m/s Wood: 3300-3600 m/s Brick: 4176 m/s Steel: 6100 m/s Diamond: 12000 m/s
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