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NYS Regents

NEW YORK STATE REGENTS EXAMS
PHYSICAL SETTING / EARTH SCIENCE - JUNE 2002

16 Which weather change usually occurs when the difference between the air temperature and the dewpoint temperature is decreasing?

(1) The amount of cloud cover decreases.
(2) The probability of precipitation decreases.
(3) The relative humidity increases.
(4) The barometric pressure increases.

17 In which list are the forms of electromagnetic energy arranged in order from longest to shortest wavelengths?

(1) gamma rays, x rays, ultraviolet rays, visible light
(2) radio waves, infrared rays, visible light, ultraviolet rays
(3) x rays, infrared rays, blue light, gamma rays
(4) infrared rays, radio waves, blue light, red light

18 On a clear summer day, the surface of land is usually warmer than the surface of a nearby body of water because the water

(1) receives less insolation
(2) reflects less insolation
(3) has a higher density
(4) has a higher specific heat

19 The diagram below represents the present number of decayed and undecayed atoms in a sample that was originally 100% radioactive material.

If the half-life of the radioactive material is 1,000 years, what is the age of the sample represented by the diagram?

(1) 1,000 yr      (3) 3,000 yr
(2) 2,000 yr     (4) 4,000 yr

20 Earth’s outer core is best inferred to be

(1) liquid, with an average density of approximately 4 g/cm3
(2) liquid, with an average density of approximately 11 g/cm3
(3) solid, with an average density of approximately 4 g/cm3
(4) solid, with an average density of approximately 11 g/cm3

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