Discoveries & Invention MCQs - Everyday Science Practice | PakExamPoint
Practise Discoveries & Invention MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Discoveries & Invention MCQs and revision practice
Study Discoveries & Invention through multiple-choice questions in Everyday Science. This subtopic contains 310 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Discoveries & Invention 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.
Explanation Cosmology as the branch of science is related to the study of Formation of Universe . Cosmology is the study of the origin, development, structure, history, and future of the entire universe . Edwin Powell Hubble is known as the father of Cosmology . Edwin Powell Hubble was an astronomer from America . ***
Explanation Rene Laennec , a French physician, invented the stethoscope in 1816 . He created the first stethoscope using a wooden tube that allowed him to listen to the heart and lungs of a patient without placing his ear on their chest.
Explanation Refracting telescope is a type of optical telescope that uses a lens as its objective to form an image. Refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses.
Explanation The nucleosome was discovered by husband and wife researchers Don and Ada Olins in 1974. First observed the "beads on a string" structure using electron microscopy A nucleosome is the basic structural unit of DNA packaging in eukaryotes.
اسپرین کی ایجاد جرمن کیمیا دان فیلکس ہوفمین نے کس سنہ میں کی تھی۔
A. 1899
B. 1893
C. None of these
D. 1897
E. 1894
Check answer and explanation
Answer: 1897
Explanation Aspirin , also known as acetylsalicylic acid, is a drug used to relieve pain, fever, or inflammation. Aspirin was invented by German chemist Felix Hoffmann in 1897.
Explanation Rudolf Diesel invented the internal combustion engine. He developed the diesel engine , which became a crucial innovation in powering vehicles and machinery.
Explanation Mother can feed the child for up to 2 years *** The American Academy of Pediatrics (AAP): Recommends breastfeeding exclusively for 6 months, then breastfeeding in addition to the start of solid foods for at least 2 years. After that breastfeeding can continue for as long as the mother and child wish.
Explanation Natural rubber is made by extracting a liquid sap, called latex. Latex is gathered from the trees by making a cut in the bark and collecting the runny sap in cups. This process is called tapping. Largest Country produced Natural rubber 1 Thailand 2 Indonesia 3 Vietnam 4 India
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