The SI standard of time is based on_____________...? Mcqs

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The SI standard of time is based on_____________...?

(A) the daily rotation of the earth
(B) the frequency of light emitted by Kr86

(C) the yearly revolution of the earth about the sun
(D) a precision pendulum clock

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Source: This question is taken from the Everyday Science

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Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________...?

(A) Radiation fog
(B) Evaporation (mixing) fog

(C) Advection fog
(D) Upslope fog

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Source: This question is taken from the Everyday Science

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Comets are made mostly of ______________...?

(A) Ice and dust
(B) Dust and lights

(C) Ice, dust and lights
(D) All of the above

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Source: This question is taken from the Everyday Science

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Candela is the basic unit of_________________...?

(A) luminous intensity
(B) heat producing value

(C) Thermodynamic temperature
(D) radioactive decay

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Source: This question is taken from the Everyday Science

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When oil and gas resources are burnt they kill many forests and lakes by ________________ ...?

(A) deforestation
(B) water pollution

(C) acid rain
(D) forest fire

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Source: This question is taken from the Everyday Science

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An atom is_____________...?

(A) smallest indivisible particle in an element
(B) smallest particle of an element which can undergo a chemical reaction

(C) building block of an element
(D) always smaller than molecule

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Source: This question is taken from the Everyday Science

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Monsoon is caused by____________________...?

(A) Seasonal reversal of winds
(B) Revolution of earth

(C) Movement of clouds
(D) Rise in temperature

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Source: This question is taken from the Everyday Science

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Maximum biological damage is caused by ____________...?

(A) Gamma rays
(B) Alpha rays

(C) Beta rays
(D) Microwaves

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Source: This question is taken from the Everyday Science

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Mercury, Venus, Earth and Mars are called___________...?

(A) Dwarf Planet
(B) Gaseous Planets

(C) Terrestrial Planets
(D) Both A & B

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Source: This question is taken from the Everyday Science

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Ice mass that covers more than fifty-thousand square kilometers of land area is classified as____________...?

(A) ice sheet
(B) ice field

(C) glacier erosions
(D) ice cap

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Source: This question is taken from the Everyday Science

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PSR J0108-1431 is the closest known ______________ to Earth...?

(A) Black hole
(B) Red giant

(C) Quasar
(D) Pulsar

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Source: This question is taken from the Everyday Science

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Ozone layer thickness is measured in____________...?

(A) Metre
(B) Joule

(C) Pounds
(D) Dobson

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Source: This question is taken from the Everyday Science

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Diamond is harder than Graphite because of___________...?

(A) Difference in crystalline Structure
(B) Tetrahedral structure of diamond

(C) Difference in layer of atoms
(D) None of these

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Source: This question is taken from the Everyday Science

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DNA is _____________...?

(A) Acetic Acid
(B) A class of nucleic acids

(C) Citric Acid
(D) None of these

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Source: This question is taken from the Everyday Science

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Fine organic or inorganic particles suspended in air is called _______________...?

(A) particulate pollutant
(B) gaseous pollutant

(C) aerosol
(D) none of these

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Source: This question is taken from the Everyday Science

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Terrestrial planets in solar system are made of____________...?

(A) Metal
(B) Rock

(C) Both A and B
(D) None of the above

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Source: This question is taken from the Everyday Science

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Role of biotechnology in the production of food based on ___________...?

(A) Decomposition
(B) Respiration

(C) Digestion
(D) Fermentation

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Source: This question is taken from the Everyday Science

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‘Magnetometer’ is used to measure: ______________...?

(A) Air Pressure on Ships
(B) Electromagnetic Force in Space Devices

(C) Changes in the Earth’s Magnetic Field
(D) Changes in Oceanic Current

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Source: This question is taken from the Everyday Science

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Mohus scale is used for to measure ____________...?

(A) Hardness
(B) Humidity

(C) Pressure
(D) Temperature

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Source: This question is taken from the Everyday Science

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...?

(A) ionic substances
(B) metallic substances

(C) molecular solids
(D) covalent network solids

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Source: This question is taken from the Everyday Science

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In middle latitudes, which cloud will have the lowest base ________________________ ...?

(A) Cirrostratus
(B) Stratocumulus

(C) Altocumulus
(D) Cirrus

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Source: This question is taken from the Everyday Science

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Dry ice is ___________...?

(A) Methane hydrate
(B) Liquid Nitrogen

(C) Solid Carbon dioxide
(D) Frozen Water

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Source: This question is taken from the Everyday Science

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The disease “Itai Itai “is caused by____________...?

(A) Carbon
(B) Cadmium

(C) Manganese
(D) None of these

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Source: This question is taken from the Everyday Science

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Joint in which bones are joined together by fibrous tissues is called _____________ ...?

(A) Fibrous joint
(B) Cartilaginous joint

(C) Synovial joint
(D) Ball and socket joint

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Source: This question is taken from the Everyday Science

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Parkinson is a disease of____________...?

(A) Eyes
(B) Brain

(C) Heart
(D) Lungs

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Source: This question is taken from the Everyday Science

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The thermosphere extends from an altitude of ________ to the base of ________ at ________...?

(A) 75 km, Mesosphere, 670 km
(B) 80 km, Ionosphere, 680 km

(C) 85 km, Exosphere, 690 km
(D) 90 km, Ozone Layer , 690 km

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Source: This question is taken from the Everyday Science

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Tetanus is caused by____________...?

(A) Clostridium
(B) Virus

(C) Bacteriophage
(D) Salmonella

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Source: This question is taken from the Everyday Science

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