General Science Class 7 MCQs MCQs - General Science Practice | PakExamPoint
Practise General Science Class 7 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
General Science Class 7 MCQs MCQs and revision practice
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.
آسمان میں ستاروں کا ایک گروہ جو زمین سے دیکھے جانے پر کسی قابل شناخت شکل یا نمونہ کا خاکہ بناتا ہے ___ کہلاتا ہے؟
A. Galaxy
B. Asterism
C. Nebula
D. Constellation
Check answer and explanation
Answer: Constellation
Explanation A constellation is a group of stars that , when viewed from Earth, form a pattern or shape that is recognizable. It has been given a specific name, such as Orion, Cassiopeia, or Ursa Major.
وہ سب سے روشن ستارہ جو دوربین کے بغیر آسمان میں دیکھا جا سکتا ہے کون سا ہے؟
A. Altair
B. Aretonus
C. Sirius
D. Regulus
Check answer and explanation
Answer: Sirius
Explanation Sirius means صبح کا ستارہ Sirius , also called the Dog Star . It is the brightest star in the night sky visible without a telescope. It is located in the constellation Canis Major . It is about 8.6 light-years from Earth. Last verified on 19-03-2026
پانی کے مالیکیولز کی زیادہ ارتکاز والے علاقے سے کم ارتکاز والے خطے میں نیم پارمیبل جھلی کے ذریعے حرکت کرنے کے عمل کو کیا کہا جاتا ہے؟
A. Osmosis
B. Induction
C. Transportation
D. Conduction
Check answer and explanation
Answer: Osmosis
Explanation Osmosis is the movement of water molecules through a semipermeable membrane from an area of higher water concentration to lower concentration. It is a vital process in biological systems for maintaining cell balance .
Explanation Bats use ultrasonic frequencies for echolocation, which are above 20 kHz ( beyond human hearing ). Their typical hearing range extends up to 110 kHz , enabling precise detection of prey and obstacles .
Explanation The female reproductive part of a flower is called the Pistil. It consists of three parts: Stigma (receives pollen grains) Style (connects stigma to ovary) Ovary (contains ovules/eggs) The pistil is also sometimes referred to as the carpel , which is a modified leaf that forms the female reproductive organ.
چھوٹے مائکروجنزم جیسے فنگی اور بیکٹیریا آکسیجن کے بغیر سانس لیتے ہیں۔ اس عمل کو کیا کہتے ہیں؟
A. Fermentation
B. Photosynthesis
C. Anaerobic Respiration
D. Aerobic Respiration
Check answer and explanation
Answer: Anaerobic Respiration
Explanation Anaerobic respiration is a process of cellular respiration that occurs in the absence of oxygen (O2). It is used by small microorganisms like fungi and bacteria, as well as muscle cells during intense exercise. Anaerobic respiration produces less energy than aerobic respiration and typically results in the production of lactic acid or ethanol and carbon dioxide.
Explanation The Sun is a star at the center of our solar system with a surface temperature of about 6000 °C (Sun’s core is even hotter, ~ 15 million °C ). It provides light and heat , essential for life on Earth. The Sun’s energy drives weather, photosynthesis, and climate . Last verified on 18-03-2026
سب سے زیادہ گرم ستارے نیلے ستارے ہیں اور ان کا درجہ حرارت _____ کے آس پاس ہے؟
A. 15000°C
B. 20000°C
C. 25000°C
D. 10000°C
Check answer and explanation
Answer: 25000°C
Explanation The hottest stars are the blue stars , and their temperature is around 25,000°C. These stars emit blue light due to their extremely high surface temperatures, which can range from 20,000 to over 30,000 degrees Celsius.
Explanation Red stars, also known as red dwarfs , typically have a surface temperature around 3000°C (5400°F). This is the coolest temperature range for stars, and it's what gives them their distinctive red color.