Question # 1

A close bottle containing water at room temperature is taken to the Moon and then the lid is opened. The water will

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Boil

Freeze

Decompose into oxygen and hydrogen

Not change at all

What type of EM radiation gives people tens?

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Gamma

Infrared

Ultraviolet

Visible

Which of the followings tell us how many protons an atom has?

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Mass

Weight

Atomic number

charge

A seller marks his goods 30% above the cost price but allows a discount of 15% fork the marked price. His percentage of profit is

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10.5

15

9

8.5

A mitochondria possesses a

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Single membrane

Double membrane

Three-layered membrane

Four-layered membrane

Oil rises up the wick in a lamp, the principle involves?

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The diffusion of oil thought the wick

The liquid state of oil

Capiillary action phenomenon

Volatility of oil

Who discovered the planet Uranus?

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Copernicus

Herschel

Einstein

Nobody

Which instrument is used to measure the quantities of heat?

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Callipers

Calorimeter

Cardiogram

Cardiograph

Plants are called the ____ of nature,

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Stomach

liver

heart

lungs

Which glass tube is used for measuring volume changes in chemical reaction s between gases?

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Eudiometer

Galvanometer

Gramphone

Gravimeter

Where is the hormone prolactin in produced

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Pituitary gland

testes

Ovaries

adrenals

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