Everyday Science MCQs | Repeated Past Papers MCQs for Exam - Page 13 of 13

Everyday science mcqs

Prepare for your upcoming test with Everyday Science MCQs and their Answers. We have compiled essential questions on various aspects of Everyday Science, including Biology, Chemistry, Atmospheric Studies, General Physics, Environmental Science, and Scientific facts. Most repeated Everyday Science MCQ section frequently encountered in CSS, PMS, Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments.

**121. Steradian is the unit of_______________?**
– **A. Solid angle**
– B. Liquid angle
– C. Gas angle
– D. Plain angle

**122. Candela is the basic unit of_________________?**
– **A. luminous intensity**
– B. heat producing value
– C. Thermodynamic temperature
– D. radioactive decay

**123. “Elephant” large unit of paper measurement equal to 28 by__________?**
– A. 23 inches
– B. 25 inches
– **C. 28 inches**
– D. 31 inches

**124. The outermost layer of skin is the__________?**
– A. endodermis
– B. dermis
– **C. epidermis**
– D. hypodermis

**125. Which are the largest of the white blood cells?**
– A. lymphocytes
– B. eosinophils
– C. basophils
– **D. monocytes**

**126. The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere ___________?**
– A. Barograph
– **B. Radiosonde**
– C. Aneroid barometer
– D. Altimeter

**127. The species that flower are called ______________?**
– A. Gymnosperms
– B. Bryophytes
– **C. Angiosperms**
– D. Algae

**128. Basidiospores are considered to be a major source of ___________?**
– **A. airborne allergens**
– B. waterborne allergens
– C. animal feces
– D. bio-weapon

**129. Pollutants that are introduced into the environment by human activity are called as ___________?**
– A. Qualitative pollutants
– B. Quantitative pollutants
– **C. Anthropogenic pollutant**
– D. All of Above

**130. An example of an abiotic component __________?**
– A. Plants
– B. Soil
– C. Animals
– **D. Bacteria**

Everyday science mcqs

**131. Which of the following planets is the fastest rotating planet?**
– A. Mercury
– B. Marx
– **C. Jupiter**
– D. Venus

**132. Which of the following planets has the smallest diameter?**
– A. Mercury
– B. Marx
– C. Pluto
– **D. Venus**

**133. Which of the following is the largest planet?**
– A. Neptune
– **B. Jupiter**
– C. Saturn
– D. Mars

**134. Who was the first to measure the Earth’s radius?**
– A. Galileo
– B. Copernicus
– C. Ptolemy
– **D. Eratosthenes**

**135. Which is the nearest star to our sun?**
– **A. Proxima Centauri**
– B. Alpha Scorpii
– C. Beta Orionis
– D. Vega

**136. The Lunar eclipse occurs when:**
– A. Moon is between the earth and the sun
– **B. Earth is between the sun and the moon**
– C. Sun is between the earth and the moon
– D. Earth is at right angles to the direction of the sun and the moon

**137. The most important effect of the moon on earth is that it___________?**
– A. Causes weather change
– B. Causes earthquakes
– C. Causes solar and lunar eclipse
– **D. Affects tides of the ocean**

**138. Among the planets of the Solar system, the position of the Earth from the Sun is:_________?**
– A. Second
– **B. Third**
– C. Fourth
– D. Sixth

**139. Which of the following spacecraft enabled man to step on the moon first?**
– A. Sputnik I
– B. Luna II
– C. Vostok I
– **D. Apollo XI**

**140. Halley’s comet is visible after every_________?**
– **A. 76 years**
– B. 84 years
– C. 1000 years
– D. 365 years

Everyday science mcqs

**141. Year is longest on:___________?**
– A. Jupiter
– **B. Earth**
– C. Mercury
– D. Mars

**142. Segmented Worms take breath through:_________?**
– A. Mouth
– B. Nose
– **C. Moist Skin**
– D. Head

**143. The brightest planet amongst the eight planets is?**
– A. Mercury
– B. Jupiter
– **C. Venus**
– D. Neptune

**144. Who discovered the Gamma Rays?**
– A. Alfred Marshall
– **B. Paul Villard**
– C. Bohr
– D. Jabir ibn Hayyan

**145. Which of the following female mosquitoes is the cause of Dengue fever?**
– **A. Aedes Aegypti**
– B. Anopheles
– C. Culex
– D. N.O.A.

**146. Hepatitis is a disease of which of the following organs?**
– A. Heart
– **B. Liver**
– C. Lungs
– D. Brain

**147. The International Date Line passes through which strait?**
– A. Malacca Strait
– B. Adam Strait
– **C. Bering Strait**
– D. Java Strait

**148. Pathology is the study of____________?**
– A. Ethics
– **B. Disease**
– C. Future
– D. Cancer

**149. Which metallic element is liquid at room temperature?**
– A. Zinc
– B. Nickel
– C. Lead
– **D. Mercury**

**150. The strongest part(s) of a magnet is/are _________?**
– **A. North pole**
– B. South pole
– C. North and south pole
– D. Median of north and south pole**

Everyday science mcqs

**151. Dengue Fever is also called___________?**
– A. Black Fever
– **B. Breakbone Fever**
– C. Plasmodium Fever
– D. Remittent Fever**

**152. 1 BTU (British Thermal Unit) is equal to___________?**
– A. 955 joules
– B. 990 joules
– **C. 1055 joules**
– D. 1211 joules**

**153. Microphone converts sound energy into ___________?**
– A. Microwaves
– **B. Electrical signals**
– C. Optical Signals
– D. Heat energy**

**154. How long does the Earth take to cover 1° longitude?**
– A. 2 Minutes
– **B. 3 Minutes**
– C. 4 Minutes
– D. 5 Minutes**

**155. Rusting of Iron involves_______________?**
– A. Reduction
– **B. Oxidation**
– C. Decomposition
– D. Displacement**

**156. Glass is made of the mixture of______________?**
– A. Quartz and Mica
– B. Sand and Salt
– **C. Sand and Silicates**
– D. None of these**

**157. The major ingredient of leather is__________________?**
– **A. Collagen**
– B. Polymer
– C. Nucleic acid
– D. None of these**

**158. Boiling of an egg is a change which is__________?**
– **A. Physical**
– B. Chemical
– C. Physiological
– D. Morphological**

**159. What is the effect of height increase over temperature?**
– A. Temperature increase
– **B. Temperature decrease**
– C. Remains constant
– D. None**

**160. Lack of _______ causes diabetes?**
– A. Vitamins
– B. Sugar
– **C. Insulin**
– D. Calcium**

Everyday science mcqs

**161. Wind always blows from an area of ________?**
– A. Low pressure to high pressure
– **B. High pressure to low pressure**
– C. Only low pressure
– D. Only high pressure

**162. Freezing point of water is__________?**
– A. 0 °C
– B. -2 °C
– C. -4 °C
– **D. None of the above**

**163. The melting point of ice is_________?**
– **A. 0°C**
– B. 100°C
– C. 40°C
– D. -40°C

**164. How many Dynes are there in one gram weight?**
– A. 993
– **B. 981**
– C. 250
– D. 375

**165. “Ornithology” is the study of_____________?**
– **A. Birds**
– B. Insects
– C. Sea Plants
– D. Sea Animals

**166. Why is normal rain slightly acidic?**
– A. due to the presence of dust in the air
– **B. carbon dioxide and water in clouds react to form carbonic acid**
– C. Ozone depletion
– D. All of these

**167. Dissolved oxygen (DO) in water should be?**
– A. 400 to 800 ppm
– B. 4000 to 8000 ppm
– **C. 0.4 to 0.5 ppm**
– D. 4 to 5 ppm

**168. The Montreal Protocol of 1987 was__________?**
– A. Treaty among nations to reduce nuclear arsenals
– B. Climate control treaty
– **C. Treaty to protect the ozone layer**
– D. Trade policy about tariffs

**169. How many meters are in one mile?**
– A. 1409.34
– B. 1509.34
– **C. 1609.34**
– D. None of the Above

**170. As a result of which treaty, the ozone hole in Antarctica is slowly healing?**
– A. Kyoto Protocol
– B. Ottawa Treaty
– **C. Montreal Protocol**
– D. Oslo Accord

Everyday science mcqs

**171. The main culprit of the greenhouse effect is Carbon dioxide. But which is the second element contributing most to the greenhouse effect?**
– A. Nitrogen Dioxide (NO2)
– B. Chlorofluorocarbons (CFCs)
– **C. Methane (CH4)**
– D. High-fructose corn syrup (HFCs)

**172. Chemical Name of Dry Ice?**
– **A. Solid Carbon Dioxide**
– B. Calcium Carbon
– C. A&B
– D. Sodium Oxide

**173. Moon is a__________?**
– A. Star
– B. Planet
– **C. A & B (Satellite)**
– D. Satellite

**174. The scientific study of measurement is known as __________?**
– A. Entomology
– **B. Metrology**
– C. Ichthyology
– D. Ecology

**175. The study of organisms and their environment is known as ________?**
– A. Acoustics
– **B. Ecology**
– C. Ichthyology
– D. None of these

**176. For which one of the following is the density maximum?**
– A. Ice
– **B. Water**
– C. Benzene
– D. Chloroform

**177. If you have “caries,” then which doctor should you consult?**
– A. Dermatologist
– B. Orthopedist
– **C. Dentist**
– D. Neurologist

**178. What is the average weight of the Human Heart?**
– A. 300 grams
– **B. 350 grams**
– C. 400 grams
– D. 450 grams

**179. CT Scan stands for__________?**
– **A. Computed Tomography Scan**
– B. Computer Topography Scan
– C. Computed Topography Scan
– D. Computer Tomography Scan

**180. In human osmoregulation takes place by___________?**
– A. Liver
– **B. Kidney**
– C. Spleen
– D. Lungs**

Everyday science mcqs

**181. How many rows and columns are in the modern Periodic Table?**
– A. 18 columns and 7 rows
– B. 12 columns and 9 rows
– C. 7 columns and 18 rows
– **D. 25 columns and 15 rows**

**182. When we sleep, blood pressure_____________?**
– **A. Decreases**
– B. Increases
– C. Remains constant
– D. None of these

**183. A Vegetable containing sulfur is____________?**
– A. Potato
– **B. Cabbage**
– C. Brinjal
– D. Pumpkin

**184. Who is the founder of the solar system?**
– A. Copernicus
– B. Newton
– C. Galileo
– **D. Kepler**

**185. Barnacles growing on the back of a whale is an example of ________________?**
– A. Mutualism
– B. Parasitism
– **C. Commensalism**
– D. Amensalism

**186. The term biotype means ___________?**
– **A. All individuals having the same phenotype**
– B. All individuals having the same genotype
– C. All individuals with different phenotypes
– D. All individuals with different genotypes

**187. The temperature at which water boils depends mainly on ____________?**
– A. Air temperature
– B. Relative humidity
– **C. Air pressure**
– D. Air density

**188. The earth’s atmosphere is divided into layers based on the vertical profile of __________?**
– A. Air pressure
– **B. Air temperature**
– C. Air density
– D. Wind speed

**189. Melanoma (skin cancer) is associated with ______________?**
– A. Ozone accumulation
– **B. Ozone depletion**
– C. Acid rain
– D. Allergens

**190. In the human body, there are_________________ kinds of bones?**
– A. 3
– B. 4
– **C. 5**
– D. 6

Everyday science mcqs

**191. Types of bones in the human body are: Long, short, irregular, and ____________?**
– **A. Flat**
– B. Medium
– C. Regular
– D. Rough

**192. There are__________ kinds of Joints in the human body?**
– A. 4
– B. 5
– **C. 6**
– D. 7

**193. Tesla is the unit of_________________________?**
– **A. Magnetic Field Strength**
– B. Electric Field Strength
– C. Gravitational Field Strength
– D. Nuclear Field Strength

**194. Siemens is the unit of__________________?**
– **A. Electrical Conductance**
– B. Magnetic Conductance
– C. Electrical Capacitance
– D. Magnetic Capacitance

**195. What is the mass of the Sun?**
– A. \(1.5 \times 10^{30}\) Kg
– **B. \(1.98 \times 10^{30}\) Kg**
– C. \(4.5 \times 10^{30}\) Kg
– D. \(8 \times 10^{30}\) Kg

**196. What is the temperature at the center of the Sun?**
– A. 6 million °C
– B. 10 million °C
– C. 15 million °C
– **D. 20 million °C**

**197. The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?**
– A. 10%
– **B. 20%**
– C. 30%
– D. 50%

**198. The phases of the moon are partially the result of the____________?**
– **A. Revolution of the moon around the earth**
– B. Changes in the shape of the moon
– C. Variations in the moon’s gravitation
– D. Variations in the speed of rotation of the moon

**199. ‘Black holes’ refer to_______________?**
– A. Holes occurring in heavenly bodies
– B. Bright spots on the sun
– **C. Collapsing objects of high density**
– D. Collapsing objects of low density

**200. Constellations referred to as the zodiac are__________?**
– **A. Imaginary regions that encompass the path of the planets**
– B. Signs of Roman gods
– C. A group of stars
– D. None of these

Everyday science mcqs

**201. Sun revolves around the Milky Way in about _____ million years.**
– A. 225
– B. 230
– **C. 245**
– D. 250

**202. Which of the following rays are more penetrating?**
– A. Beta rays
– B. Alpha rays
– **C. Gamma rays**
– D. X-rays

**203. Which element is used as a moderator in a nuclear reactor?**
– A. Light water
– B. Dense water
– C. Fresh water
– **D. Heavy water**

**204. Which planet is called Earth’s Sister?**
– A. Mercury
– **B. Venus**
– C. Mars
– D. Neptune

**205. What are stars mainly made of?**
– **A. Balls of gas**
– B. Rock
– C. Ice
– D. Light

**206. Japan is called ‘Land of the Rising Sun’ because:**
– A. Sun rises there as soon as it sets
– B. Sun always remains in the eastern past of the sky throughout the day in Japan
– **C. Japan being the Eastern most country in the world, it has the earliest sunrise**
– D. The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan

**207. Water vapor beyond the dew point results in_________?**
– A. Precipitation
– B. Hailstorm
– **C. Condensation**
– D. Formation of ice

**208. The volume of blood in a human body is approximately _________ of body weight?**
– A. 6%
– **B. 7%**
– C. 8%
– D. 9%

**209. Cause of Malaria is ________?**
– A. Dirty environment
– B. Pollution
– **C. Mosquito**
– D. None of the above

**210. Largest Galaxy in the Universe is_________?**
– **A. Andromeda Galaxy**
– B. Milky-Way
– C. Spiral Galaxy
– D. Horseshoe Galaxy

Everyday science mcqs

**211. Largest moon in our solar system is ________?**
– A. Deimos
– **B. Ganymede**
– C. Phobos
– D. Arche

**212. In which layer of the atmosphere do commercial aircraft usually fly?**
– **A. Stratosphere**
– B. Troposphere
– C. Mesosphere
– D. Thermosphere

**213. Which gas was discovered on the sun about 151 years ago during a total solar eclipse?**
– A. Hydrogen
– **B. Helium**
– C. Nitrogen
– D. Fluorine

**214. Common food sources of Vitamin A are:___________?**
– A. Milk, eggs, butter, cheese, cream, and liver
– B. White sugar, honey, and sugar cane
– **C. Broccoli, apricots, cantaloupe, carrots, sweet potato, spinach**
– D. Both A and C

**215. The vitamin Folate works together with __________ to produce new red blood cells?**
– A. Vitamin D
– B. Vitamin A
– **C. Vitamin B-12**
– D. None of the above

**216. Which of the following is not a water-soluble vitamin?**
– **A. Tocopherol**
– B. Pyridoxine
– C. Pantothenic acid
– D. Niacin

**217. Deficiency of Iodine causes:____________?**
– A. Anemia
– B. Scurvy
– **C. Goiter**
– D. Rickets

**218. Growth is provided by________?**
– **A. Protein**
– B. Minerals
– C. Vitamins
– D. Carbohydrates

**219. The percentage of water used for drinking in the world is?**
– A. 1%
– B. 10%
– **C. 3%**
– D. 5%

**220. In Space, our Body_______?**
– **A. Loses Weight**
– B. Gains Weight
– C. No Change
– D. Little Change

Everyday science mcqs

**221. One Quintal is Equal to___________?**
– A. 70 kg
– B. 80 kg
– C. 90 kg
– **D. 100 kg**

**222. The Scientist who said “Heat is a form of Energy” was___________?**
– A. Thomas Alva Edison
– B. Newton
– **C. Joule**
– D. Kepler

**223. The Time taken for sunlight to reach the Earth is___________?**
– A. 700 sec
– B. 8hrs 20 mins
– **C. 8 mins 20 sec**
– D. 8 mins

**224. ‘Bar’ is the unit of___________?**
– A. Temperature
– B. Heat
– **C. Atmospheric pressure**
– D. Current

**225. One Joule is equal to__________?**
– **A. \(10^5\) ergs**
– B. \(10^3\) ergs
– C. \(10^7\) ergs
– D. \(10^{11}\) ergs

**226. Scientist discovered a previously undetected feature of human Anatomy that could be the largest organ of the human body?**
– A. Brass
– B. Pectora
– **C. Interstitium**
– D. Otic

**227. Which of the following does not pollute the air?**
– A. Nitrogen Dioxide
– B. Sulfur dioxide
– **C. Carbon dioxide**
– D. None of these

**228. Kilohertz (kHz) is a unit that measures?**
– A. Power used by a current of one ampere
– **B. Electromagnetic radio wave frequencies**
– C. Voltage
– D. Electric resistance

**229. The study of heavenly bodies is known as_________?**
– **A. Astronomy**
– B. Astrology
– C. Astronautics
– D. Astrophysics

**230. Jupiter has ________ known moons.**
– A. 62
– B. 73
– **C. 79**
– D. 53

Everyday science mcqs

**231. In 2013, Planck measured the age of the universe at ___________?**
– **A. 13.82 billion years**
– B. 4.53 billion years
– C. 4.6 billion years
– D. 4.53 billion years

**232. Human beings use _______ liters of pure oxygen per day.**
– A. 550
– **B. 2500**
– C. 1,050
– D. 10,000

**233. The yellow color in photochemical smog is due to the presence of____________?**
– A. Sulphur dioxide
– B. Carbon dioxide
– **C. Nitrogen dioxide**
– D. CFC’s

**234. The scientific study of insects is known as _______?**
– A. Ichthyology
– **B. Entomology**
– C. Zoology
– D. Botany

**235. The study of fish is known as ________?**
– A. Entomology
– **B. Ichthyology**
– C. Ecology
– D. None of these

**236. White blood cells are also known as________?**
– A. Thrombocytes
– **B. Leucocytes**
– C. Erythrocytes
– D. None of These

**237. Frozen dew is also known as________?**
– **A. Frost**
– B. Black ice
– C. Frozen ice
– D. Black hail

**238. A body of land that is surrounded by water on three sides is called________?**
– A. Strait
– B. Bay
– **C. Peninsula**
– D. Gulf

**239. When a single month has two full moons, the second moon is called________?**
– A. Super moon
– **B. Blue moon**
– C. Super blue moon
– D. Red moon

**240. Density of Milk is________?**
– A. 1.024 g/cm3
– **B. 1.034 g/cm3**
– C. 1.044 g/cm3
– D. 1.054 g/cm3

Everyday science mcqs

**241. Density of Water is_________?**
– A. 897 kg/m³
– **B. 997 kg/m³**
– C. 1000 kg/m³
– D. 1025 kg/m³

**242. How many layers of Atmosphere?**
– A. 2
– B. 3
– **C. 4**
– D. 5

**243. Mass of Earth is___________?**
– **A. \(5.972 \times 10^{24}\) kg.**
– B. \(6.972 \times 10^{24}\) kg
– C. \(7.972 \times 10^{24}\) kg
– D. \(8.972 \times 10^{24}\) kg

**244. The Sun is at an average distance of about________ million kilometers away from Earth?**
– A. 100 million
– B. 150 million
– C. 200 million
– **D. 250 million**

**245. Telephone was invented by__________?**
– A. Vint Cerf
– B. Charles Babbage
– **C. Edison**
– D. Alexander Graham Bell

**246. What is the weight of the average human brain?**
– A. 1.2 to 1.4 Kg
– B. 1.4 to 1.8 Kg
– C. 2.1 to 2.8 Kg
– **D. 3.1 to 3.4 Kg**

**247. In Fishes, excretory Product is__________?**
– A. Nitrogen
– B. Ammonia
– C. Urea
– **D. Carbon dioxide**

**248. Which blood cells are called ‘Soldiers’ of the body?**
– **A. White Blood Cells**
– B. Platelets
– C. Red Blood Cells
– D. None of the above

**249. Adult human brain is about_________% of the total body weight.**
– A. 2%
– B. 3%
– **C. 7%**
– D. 8%

**250. Humans can hear in the range of ______ to _______Hertz (Hz).?**
– A. 10 Hz to 10,000 Hz.
– **B. 20 Hz to 20,000 Hz.**
– C. 30 Hz to 30,000 Hz.
– D. 40 Hz to 40,000 Hz.

Everyday science mcqs

**251. Pressure is measured by_________?**
– **A. Barometer**
– B. Voltmeter
– C. Lactometer
– D. Ammeter

**252. Which of the following is the hardest substance?**
– A. Copper
– **B. Diamond**
– C. Iron
– D. Silicon

**253. Which one of the following is also called Stranger Gas?**
– A. Neon
– B. Argon
– **C. Xenon**
– D. Nitrous oxide

**254. Inhaled air passes through which of the following last?**
– A. Bronchiole
– B. Larynx
– C. Pharynx
– **D. Trachea**
– E. None of these

**255. In Eye donation, which part of the eye is used?**
– A. Retina
– B. Iris
– **C. Cornea**
– D. Optic nerve

**256. Who is Considered as Father of Botany?**
– A. Aristotle
– B. Gregor Joghn Mandle
– **C. Theophrastus**
– D. Carl Linnaeus

**257. Which Part of the Brain Regulates Body Temperature?**
– A. Cerebellum
– B. Cerebrum
– **C. Hypothalamus**
– D. Medulla

**258. Which of the following is a Non-Metal that remains Liquid at room temperature?**
– A. Phosphorous
– **B. Bromine**
– C. Chlorine
– D. Helium

**259. Which of the following is used in Pencils?**
– **A. Graphite**
– B. Silicon
– C. Charcoal
– D. Phosphorous

**260. Frog Heart has how many chambers?**
– A. 2
– B. 3
– **C. 4**
– D. 5

Everyday science mcqs

**261. What do you understand by the disease “Insomnia”?**
– A. Color blindness
– B. Depression
– C. Hypertension
– **D. Inability to sleep**

**262. How many moons does Uranus have?**
– A. 15
– B. 12
– **C. 27**
– D. 45

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