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.
مائعات اور گیسوں میں حرارت کی منتقلی کس طریقے سے ہوتی ہے؟
A. None of these
B. Conduction
C. Convection
D. Radiation
Check answer and explanation
Answer: Convection
Explanation In liquids and gases , heat is mainly transferred by convection . Convection involves the movement of particles carrying heat from one place to another . Essential for weather patterns, ocean currents , and heating systems. Last verified on 19-03-2026
Explanation The Sun has a temperature of around 6,000 °C and glows orange/yellow. This color is due to the blackbody radiation emitted by the Sun at this temperature, which peaks in the visible spectrum around yellow.
زندہ چیزوں کے خاص ماحول کے مطابق زندگی گزارنے کی جگہ _____ ہے؟
A. Community
B. Habitat
C. Population
D. Ecosystem
Check answer and explanation
Answer: Habitat
Explanation A habitat is the natural environment in which a living thing resides. Including all the living and non-living factors that affect its survival and growth.
مندرجہ ذیل میں سے کون سا سانس لینے کے عمل کی خصوصیت نہیں ہے؟
A. It release energy
B. It is a physical process
C. It occurs in the respiratory system
D. It require energy
Check answer and explanation
Answer: It release energy
Explanation Breathing (respiration) is a process that requires energy. But it does not release energy. The characteristics of the breathing process are : It is a physical process. It occurs in the respiratory system. It requires energy. Enzymes are not involved.
پودوں میں کاربن کے اخراج اور حیاتیاتی کیمیائی راستوں کی تحقیقات کے لیے کون سا آئسوٹوپ استعمال کیا جاتا ہے؟
A. Carbon - 14
B. Nitrogen - 15
C. Phosphorus - 32
D. Lead - 210
Check answer and explanation
Answer: Carbon - 14
Explanation Carbon-14 is used to investigate carbon uptake and biochemical pathways in plants. It is a radioactive isotope that allows researchers to trace carbon through various metabolic processes.
سانس لینے کے عمل کے دوران ڈایافرام کلیدی کردار ادا کرتا ہے، سانس چھوڑنے کے دوران ڈایافرام کہاں حرکت کرتا ہے؟
A. Remains stationary
B. Move downwards
C. Move upwards
D. Move sideways
Check answer and explanation
Answer: Move upwards
Explanation During exhalation, the diaphragm relaxes and moves upwards. It decreasing the volume of the thoracic cavity and allowing air to leave the lungs.
Explanation Whales have a unique audible range that is adapted to their underwater environment. They can hear sounds at very low frequencies , often below 20 Hz, and up to 31 kHz.
Explanation An atom typically has an equal number of electrons and protons. They are equal in number to the atomic number (Z) of the element. This number is unique to each element and determines the properties of the element.
Explanation Light Year is the distance that light can travel in one year . The distance light travels in one year is known as light year . 1 light year is equal to 9.5 x 10¹²km . Last verified on 30-03-2026
Explanation A chemical formula tells us the number of atoms of each element in a compound. It contains the symbols of atoms of the elements present in the compound. As well as how many there are for each element , in the form of subscripts.
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