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.
خلا میں ستاروں کے ستاروں کی روشنی کو جذب کرنے اور بکھرنے کا کیا سبب ہے جس کے نتیجے میں ان کی چمک میں کمی واقع ہوتی ہے؟
A. Black Holes and Neutron Stars
B. Dust and Gas
C. Planets and Moons
D. Asteroids and Comets
Check answer and explanation
Answer: Dust and Gas
Explanation Dust and gas in the interstellar medium (ISM) can absorb and scatter starlight. It leading to a reduction in the brightness of stars as seen from Earth. This is known as interstellar extinction.
دل کے دورے کی بنیادی وجہ درج ذیل میں سے کون سی ہے؟
A. Low blood pressure
B. Cholesterol
C. Dehydration
D. Anaemia
Check answer and explanation
Answer: Cholesterol
Explanation High levels of cholesterol can lead to the buildup of plaques in the arteries. It causing atherosclerosis, which is a primary factor in heart attacks.
ہمارے نظام شمسی کو آکاشگنگا کہکشاں کے گرد ایک مدار میں کتنے سال لگتے ہیں؟
A. 225
B. 275
C. 300
D. 250
Check answer and explanation
Answer: 250
Explanation Our solar system takes approximately 225 to 230 million Earth years to complete one full orbit around the center of the Milky Way galaxy, A period known as a galactic year or cosmic year. Traveling at about 514,000 mph (828,000 km/h) Given the Sun's age, it has circled the galacti c center about 20 times.
وہ نظریہ جو تقریباً 15 بلین سال پہلے ہونے والے ایک دھماکے کی طرف اشارہ کرتا ہے، جسے زیادہ تر ماہرین فلکیات کائنات کی اصل مانتے ہیں، اسے کیا کہا جاتا ہے
A. Big Bang Theory
B. The Red Shift Theory
C. Titanic Theory
D. Relativity Theory
Check answer and explanation
Answer: Big Bang Theory
Explanation The theory describing the universe's beginning with a rapid expansion from a hot, dense state is known as the Big Bang theory is an American television sitcom created by Chuck Lorre and Bill Prady for CBS. It aired from September 24, 2007, to May 16, 2019
پراپرٹی فیصلہ کرتی ہے کہ جدید متواتر جدول میں عناصر کی ترتیب ____ ہے؟
A. The number of protons (atomic number) in the nucleus
B. The number of electrons in the outermost shell
C. The number of neutrons in the nucleus
D. The atomic mass of the element
Check answer and explanation
Answer: The number of protons (atomic number) in the nucleus
Explanation In the modern periodic table , elements are arranged in the order of increasing atomic number (number of protons). This arrangement explains the periodic repetition of chemical properties .
ایسی زمین جہاں بارش جنگل سے کم ہو اس لیے درختوں کی نشوونما میں معاون نہ ہو اسے کہتے ہیں؟
A. Desert
B. Tundra
C. Grassland
D. Forest
Check answer and explanation
Answer: Grassland
Explanation Grasslands, also known as prairies or savannas , are areas with lower rainfall than forests, typically between 50-200 mm annually. This lower rainfall doesn't support the growth of trees, but instead favors grasses and other herbaceous plants.
ٹی بی ایک متعدی بیکٹیریل بیماری ہے جو مائکوبیکٹیریم کی وجہ سے ہوتی ہے، درج ذیل میں سے کون سی ٹی بی کی علامت نہیں ہے؟
A. Chest pain
B. Weight gain
C. Fever
D. Sweating at night
Check answer and explanation
Answer: Weight gain
Explanation Tuberculosis (TB) is a bacterial infection caused by Mycobacterium tuberculosis, and its symptoms include: Fever Chest pain Coughing up blood or phlegm Sweating at night Fatigue Weight loss (not weight gain)
پانی سے معلق ریت کے ذرات اور ناقابل حل جسمانی نجاست کو دور کرنے کا طریقہ کیا ہے؟
A. Distillation
B. Chlorination
C. Sedimentation
D. Filtration
Check answer and explanation
Answer: Filtration
Explanation Filtration is a process that removes suspended sand particles and insoluble physical impurities from water. By passing it through a filter medium, such as sand, gravel, or a membrane.
لہر کے دو سروں یا گرتوں کے درمیان فاصلہ ______ کہلاتا ہے؟
A. Frequency
B. Velocity
C. Wavelength
D. Amplitude
Check answer and explanation
Answer: Wavelength
Explanation Wavelength is the distance between two successive crests or two successive troughs in a transverse wave. It represents one complete cycle of a wave. Additional information : Symbol used: λ (Lambda) SI unit: meter (m) Wave formula: v = fλ Example wavelength values: 1 m, 0.5 m, 10 cm, 500 nm, 700 nm Visible light wavelength range: ~ 400 nm – 700 nm Last verified on 12-03-2026
Explanation Crystallization is used to purify solids, not to purify water . Filtration, distillation, and chlorination are all common methods for purifying water.
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