everyday science Mcqs
601. The study of fish is known as ________?
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A. Ecology

B. None of these

C. Entomology

D. Ichthyology
602. Which rays are trapped in our galaxy by magnetic waves?
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A. Gamma rays

B. Cosmic rays

C. None of these

D. Alpha rays

603. who invented bulb?
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A. Willium

B. Philips

C. Edison

D. Robert

604. Pollutants that are introduced into the environment by human activity are called as ___________?
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A. All of Above

B. Anthropogenic pollutant

C. Qualitative pollutants

D. Quantitative pollutants

605. Disolved oxygen (DO) in water should be?
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A. 4000 to 8000 ppm

B. 400 to 800 ppm

C. 0.4 to 0.5 ppm

D. 4 to 5 ppm
606. Most important effect of the moon on earth is that it___________?
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A. Causes earthquakes

B. Causes weather change

C. Causes solar and lunar eclipse

D. Effects tides of the ocean
607. Which of the following is used in Pencils?
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A. Graphite

B. Charcoal

C. Silicon

D. Phosphorous

609. Which is the hottest planet in our Solar system?
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A. Mars

B. None of these

C. Venus

D. Neptune

610. Which one is Natural Satellite?
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A. Venus

B. Mercury

C. Moon

D. Sun

611. Which blood cells are called Soldiers of the body?
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A. Platelets

B. Red Blood Cells

C. None of the above

D. White Blood Cells
613. Approximate age of sun is _________?
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A. 4.5 billion years

B. 4.7 billion years

C. 4.6 billion years

D. 4.4 billion years

615. Echo is a ___________ of sound?
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A. Refraction

B. None

C. Reflection

D. Interference

617. White bloods cells are also known as________?
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A. Leucocytes

B. None of These

C. Erythrocytes

D. Thrombocytes

618. Bamboo is a__________?
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A. Tree

B. Herb

C. Shurb

D. Grass
619. What prevents the earths atmosphere from drifting away into space?
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A. Troposphere

B. Ozone layer

C. Gravity

D. Ecosystem

620. Who is the founder of solar system?
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A. Newton

B. Kepler

C. Copernicus

D. Galileo

621. The pyramid of energy in any ecosystem is _________?
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A. Always Circle

B. May be upright or invented

C. Always inverted

D. Always upright
622. Humans can hear in the range of ______ to _______Hertz (Hz).?
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A. 40 Hz to 40,000 Hz.

B. 30 Hz to 30,000 Hz.

C. 20 Hz to 20,000 Hz.

D. 10 Hz to 10,000 Hz.

623. Candela is the basic unit of_________________?
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A. luminous intensity

B. radioactive decay

C. heat producing value

D. Thermodynamic temperature

624. The atmospheric greenhouse effect is produced mainly by the __________________?
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A. Absorption and re-emission of visible light by the ground

B. Absorption and re-emission of visible light by the atmosphere

C. Absorption and re-emission of visible light by clouds

D. Absorption and re-emission of ultraviolet radiation by the atmosphere

E. Absorption and re-emission of infrared radiation by the atmosphere
625. There is no connection of supernova explosion with___________?
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A. The formation of heavy elements

B. Pulsars

C. Quasars

D. Cosmic rays

628. CT Scan stand for__________?
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A. Computed Topography Scan

B. Computed Tomography Scan

C. Computer Topography Scan

D. Computer Tomography Scan

631. Haileys comet is visible after every_________?
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A. 84 years

B. 1000 years

C. 76 years

D. 365 years

632. Montreal Protocol 1987 was__________?
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A. Trade policy about tarrifs

B. Climate control treaty

C. Treaty among nations to reduce nuclear arsenals

D. Treaty to protect ozone layer
633. The scientific study of measurement is known as __________?
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A. Ichthyology

B. Ecology

C. Entomology

D. Metrology
634. Who was the first to measure the earths radius
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A. Ptolemy

B. Galileo

C. Copernicus

D. Eratosthenes
636. The Sun produces most of its energy by_____________?
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A. Nuclear fusion

B. Burning hydrogen

C. None of these

D. nuclear fission

637. When we sleeps blood pressure_____________?
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A. Decreases

B. None of these

C. Increases

D. Remain constant

638. In which layer of atmosphere does commercial aircrafts usually fly?
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A. Stratosphere

B. Thermosphere

C. Mesosphere

D. Troposphere

641. Which term describes the emission of light by a living organism?
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A. Natural light

B. Bioluminescence

C. Mimicry

D. Illumination

642. A slow-running pendulum clock can be speeded up by_______________?
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A. Increasing the length of the rod

B. Reducing the length of the rod

C. Increasing the weight of the bob

D. Reducing the weight of the bob

643. A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to____________?
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A. Spread out his weight and reduce the pressure on the rope

B. To keep the centre of gravity always vertically above the rope

C. Add extra weight to keep the rope tightly stretched

D. Prop him up if he falls

644. What natural phenomena are measured by the Richter Scale?
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A. Earth quacks

B. Typhoons

C. Tsunami

D. Volcanoes

645. Central Color of Rainbow is__________?
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A. Red

B. Indigo

C. Blue

D. Green
646. The species that flower are called ______________?
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A. Gymnosperms

B. Algae

C. Bryophytes

D. Angiosperms
647. Moon is a__________?
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A. Planet

B. A & B

C. Satellite

D. Star

649. The Temperature of the surface of Sun is_______?
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A. 9,778 Kelvin

B. 5,778 Kelvin

C. 7,778 Kelvin

D. 6,778 Kelvin

650. Dengue Fever is also called___________?
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A. Plasmodium Fever

B. Breakbone Fever

C. Remittent Fever

D. Black Fever