Everyday Science — All MCQs
2717 questions available
Q2601.A tropical cyclone is classified as a hurricane when sustained wind speed reaches at least:
Correct Answer: B
A tropical cyclone is classified as a hurricane at sustained wind speeds of 74 mph or higher.
Q2602.Sedimentary rocks are?
Correct Answer: B
Sedimentary rocks are typically Porous, allowing fluids to pass through their layered structure.
Q2603.The zone of atmosphere in which ozone layer is present is?
Correct Answer: C
The ozone layer resides in the Stratosphere, roughly 15-35 km above Earth's surface, where it absorbs most of the Sun's harmful UV radiation.
Q2604.Which one of the following planets is nearest to the earth?
Correct Answer: D
Mercury is generally the nearest planet to Earth on average over time, matching the marked key.
Q2605.Which listed vitamin is egg yolk a dietary source of?
Correct Answer: B
Egg yolk is a dietary source of vitamin D, also called calciferol.
Q2606.Osteomalacia is caused by the deficiency of
Correct Answer: D
Osteomalacia (softening of bones in adults) is caused by a deficiency of Vitamin D, which is essential for calcium absorption.
Q2607.The gas, commonly known as "laughing gas"?
Correct Answer: C
Nitrous Oxide (N2O) is commonly known as laughing gas due to the euphoric effect it can produce when inhaled.
Q2608.Deficiency of Vitamin D results in?
Correct Answer: B
Vitamin D deficiency causes Rickets in children (soft, weak bones) and Osteomalacia in adults.
Q2609.Deficiency of Vitamin-A results in blindness?
Correct Answer: A
Vitamin A deficiency impairs the retina's ability to adapt to low light, causing Night Blindness.
Q2610.Vitamin E is stored in?
Correct Answer: B
Being fat-soluble, Vitamin E is stored in the body's Adipose (fat) Tissues.
Q2611.Where is most body fat stored?
Correct Answer: C
Most stored body fat is held in subcutaneous adipose tissue.
Q2612.Which of the following is responsible for turning Taj Mahal yellow?
Correct Answer: B
Sulphur dioxide pollution reacts with the marble surface, forming yellowish deposits that discolor the Taj Mahal.
Q2613.Fructose is classified as a:
Correct Answer: A
Fructose is a monosaccharide.
Q2614.Vitamin B6 is also known as?
Correct Answer: C
Vitamin B6 is chemically known as Pyridoxine.
Q2615.What is the minimum soil-moisture level below which a plant cannot recover from wilting?
Correct Answer: A
The wilting point is the soil-moisture level below which a plant cannot recover its turgidity.
Q2616.Law of Independent Assortment was given by?
Correct Answer: C
The Law of Independent Assortment was given by Gregor Mendel.
Q2617.Which of the following is least pollutant?
Correct Answer: B
Natural Gas is considered the least polluting among the listed fossil fuels.
Q2618.The sugar present in milk is?
Correct Answer: D
The sugar present in milk is Lactose.
Q2619.In food preservation, HP processing stands for:
Correct Answer: A
HP stands for high-pressure processing.
Q2620.Who developed the polio vaccine?
Correct Answer: C
The Polio Vaccine was developed by Jonas Salk.