Branch of Science MCQs - Everyday Science Practice | PakExamPoint
Practise Branch of Science MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Branch of Science MCQs and revision practice
Study Branch of Science through multiple-choice questions in Everyday Science. This subtopic contains 2513 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Branch of Science 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.
A. hot air can absorb moisture from the air rather quickly
B. higher temperature of the air helps fast evaporation
C. hot air carries much moisture
D. Hot air carries less moisture
Check answer and explanation
Answer: higher temperature of the air helps fast evaporation
Explanation The rate of evaporation is directly proportional to temperature. Thus, the rate of evaporation is higher on a warm day than a cold day having low temperature and clothes dry faster on a warm day.
سائنس کی وہ شاخ جو حرکت میں مائع کے عملی استعمال سے متعلق ہے ____ کہلاتی ہے؟
A. Hydrology
B. Pneumatic
C. Hydrostatics
D. Hydraulics
Check answer and explanation
Answer: Hydraulics
Explanation Hydraulics is a branch of science and engineering that focuses on the use of liquids to transmit power, generate motion, and control systems. It is widely used in various industries , including construction, manufacturing, and aerospace.
Explanation Human sex hormones, also known as sex steroids, are made up of steroids specifically derived from cholesterol. Steroid Hormones: Sex hormones, lik e testosterone, estrogen, and progesterone , belong to a class of hormones called steroid hormones. Lipid Derived: Steroid hormones are lipids, meaning they are fat-soluble molecules. Cholesterol as Precursor: These hormones are synthesized from cholesterol, a type of lipid.
سارڈائن چھوٹی مچھلیاں ہیں جو اصل میں کس اطالوی جزیرے کے ساحل سے پکڑی گئی تھیں؟
A. Stromboli
B. Capri
C. Elba
D. Sardinia
Check answer and explanation
Answer: Sardinia
Explanation island of Sardinia " Sardine" and "pilchard" are common names for various small, oily forage fish in the herring family Clupeidae. The term "sardine" was first used in English during the early 15th century, it comes from the Italian island of Sardinia , around which sardines were once abundant.
B. Increases the average kinetic energy of the reactants
C. Increases the activation energy
D. Alters the reaction mechanism
Check answer and explanation
Answer: Alters the reaction mechanism
Explanation A catalyst provides an alternative reaction pathway with lower activation energy. It does not change reactants' energy but speeds up the reaction.
Explanation Physiotherapy , is a healthcare profession that focuses on the assessment, diagnosis, and treatment of disorders and injuries that affect the physical function of the body. Physiotherapists work to restore, maintain, and maximize a patient's strength, function, movement, and overall well-being. Physiotherapy typically deals with: Immobility of joints and muscles Injuries or conditions affecting the musculoskeletal system (e.g., back pain, arthritis, sports injuries) Neurological conditions (e.g., stroke, spinal cord injury, Parkinson's disease) Cardiovascular and respiratory conditions (e.g., heart disease, chronic obstructive pulmonary disease)
Explanation The chemical formula of baking soda is NaHCO ₃, which stands for sodium bicarbonate. The chemical name of baking soda is sodium hydrogen carbonate or sodium bicarbonate (NaHCO3). Sodium bicarbonate is non flammable Baking soda is basic in nature.
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