A thermos flask keeps things close to their original temperature by reducing ____...? Mcqs

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A thermos flask keeps things close to their original temperature by reducing ____...?

(A) Conduction
(B) Convection

(C) Radiation
(D) All of these

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A force that stops things from moving easily is known as:...?

(A) Fraction
(B) Friction

(C) Fission
(D) Flocculation

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A type of cancer that affects the blood, bone marrow and lymphatic system called...?

(A) Lymphoma
(B) Carcinoma

(C) Leukemia
(D) Sarcoma

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Weather describe the condition of ______ at any one time....?

(A) The earth
(B) The land surface

(C) The atmosphere
(D) The ionosphere

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If an opaque object is moved further away from the light source, the shadow gets _____...?

(A) Smaller
(B) Bigger

(C) Darker
(D) Lighter

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Lenses form images through ______...?

(A) Dispersion
(B) Diffraction

(C) Refraction
(D) Reflection

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Serum if blood plasma minus its...?

(A) Calcium ions
(B) Clotting proteins

(C) Globulins
(D) none

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The coolest stars are the red stars and their temperature is around ____...?

(A) 2000°C
(B) 3000°C

(C) 4000°C
(D) 5000°C

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The subatomic particles arriving from outer space having high energy are called...?

(A) Protons
(B) Electrons

(C) Cosmic rays
(D) None of the above

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Water vapour turns into clouds in the atmosphere when:...?

(A) It rains
(B) The temperature rise

(C) Dew point is reached
(D) Evaporation takes place

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