Non stick cooking utensils are coated with___?

A:  PVC

B: Black paint

C:  Teflon

D:  polystyrene

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 Teflon

Mach number is used in connection with the speed of______?

A: Light

B: Ship

C: Sound

D: aircraft

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aircraft

Who said that light is made of corpuscles/particles?

A: Einstein

B: Maxwell

C: B. Newton

D: Huygein

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Newton

The principal constituent of the atmosphere of the Earth is?

A: Carbon

B: Oxygen

C: Hydrogen

D: Nitrogen

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Nitrogen

1 BTU(British thermal unit) is equal to______?

A: 990 joules

B: 955 joules

C: 1055 joules

D: 1211 joules

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1055 joules

The process of converting wet waste to manure is______?

A: Conservation

B: Metabolism

C: Incineration

D: Composting

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Composting

The main constituent of hemoglobin is______?

A: Iron

B: Chlorine

C: Calcium

D: None of these

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Iron

Cell or Tissue death within a living body is called as_____?

A: Nephrosis

B: Neutrophilia

C: Necrosis

D: Neoplasia

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Necrosis

Elements are made of ____?

A: Molecules

B: Atoms

C: H2O

D: Compounds

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Atoms

Study of Soil is called_____?

A: Pedagogy

B: Pedology

C: sociology

D: Demography

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Pedology

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