3241. Practice check: Select the scientifically correct answer: which type of wave can travel through a vacuum?
✅ A. Electromagnetic wave
a: Electromagnetic wave | b: Seismic S-wave | c: Water wave | d: Sound wave Read more
Everyday Science MCQs – Page 163
3242. Practice check: Select the scientifically correct answer: which energy source is renewable?
✅ B. Solar energy
a: Coal | b: Solar energy | c: Natural gas | d: Petroleum Read more
3243. Practice check: Select the scientifically correct answer: what is the center of an atom called?
✅ B. Nucleus
a: Isotope cloud | b: Nucleus | c: Electron shell | d: Molecule Read more
3244. Practice check: Select the scientifically correct answer: what is the change from gas to liquid called?
✅ A. Condensation
a: Condensation | b: Evaporation | c: Melting | d: Sublimation Read more
3245. Practice check: Select the scientifically correct answer: what is the approximate speed of light in vacuum?
✅ A. 300,000 km/s
a: 300,000 km/s | b: 3,000,000 km/s | c: 3,000 km/s | d: 30,000 km/s Read more
3246. Practice check: Select the scientifically correct answer: which natural satellite orbits Earth?
✅ A. The Moon
a: The Moon | b: Phobos | c: Europa | d: Titan Read more
3247. Practice check: Select the scientifically correct answer: what is the nearest star to Earth?
✅ D. The Sun
a: Proxima Centauri | b: Polaris | c: Sirius | d: The Sun Read more
3248. Practice check: Select the scientifically correct answer: which instrument measures temperature?
✅ B. Thermometer
a: Voltmeter | b: Thermometer | c: Barometer | d: Seismometer Read more
3249. Practice check: Select the scientifically correct answer: what is the process of liquid changing into gas called?
✅ A. Evaporation
a: Evaporation | b: Condensation | c: Freezing | d: Deposition Read more
3250. Practice check: Select the scientifically correct answer: which instrument measures atmospheric pressure?
✅ C. Barometer
a: Hygrometer | b: Anemometer | c: Barometer | d: Thermometer Read more
3251. Practice check: Select the scientifically correct answer: what is the main gas in Earth’s atmosphere?
✅ A. Nitrogen
a: Nitrogen | b: Oxygen | c: Carbon dioxide | d: Argon Read more
3252. Practice check: Select the scientifically correct answer: which layer helps protect Earth from much of the Sun’s ultraviolet radiation?
✅ A. Ozone layer
a: Ozone layer | b: Mantle | c: Troposphere only | d: Inner core Read more
3253. Practice check: Select the scientifically correct answer: which organ pumps blood around the human body?
✅ A. Heart
a: Heart | b: Lung | c: Kidney | d: Liver Read more
3254. Practice check: Select the scientifically correct answer: which vitamin can the skin produce with adequate sunlight exposure?
✅ C. Vitamin D
a: Vitamin B12 | b: Vitamin C | c: Vitamin D | d: Vitamin K Read more
3255. Practice check: Select the scientifically correct answer: what is the SI unit of force?
✅ D. Newton
a: Joule | b: Pascal | c: Watt | d: Newton Read more
3256. Practice check: Select the scientifically correct answer: what force pulls objects toward Earth?
✅ B. Gravity
a: Magnetism | b: Gravity | c: Friction | d: Buoyancy Read more
3257. Practice check: Select the scientifically correct answer: at standard atmospheric pressure, water boils at what temperature?
✅ A. 100°C
a: 100°C | b: 50°C | c: 0°C | d: 150°C Read more
3258. Practice check: Select the scientifically correct answer: which planet is known as the Red Planet?
✅ B. Mars
a: Venus | b: Mars | c: Mercury | d: Jupiter Read more
3259. Practice check: Select the scientifically correct answer: what is the chemical formula of water?
✅ B. H2O
a: NaCl | b: H2O | c: CO2 | d: O2 Read more
3260. Practice check: Select the scientifically correct answer: which gas do plants absorb during photosynthesis?
✅ B. Carbon dioxide
a: Nitrogen | b: Carbon dioxide | c: Oxygen | d: Hydrogen Read more