The cones of the jack pine (Pinus banksiana) are serotinous, only opening when exposed to intense heat. This is an example of
A) primary succession.
B) eutrophication.
C) secondary succession.
D) pioneering.
E) fire adaptation.
E
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The type of strain that occurs depends not only on the kind of stress applied, but also on the:a
amount of pressure and degree of temperature. b. rock type. c. duration of the stress d. A and C e. A and B
Why is ocean climate (and the entirety of Earth, for that matter) divided into latitude parallel zones that become progressively colder from equator to pole?
a) Winds are stronger at higher latitudes, so cooling is greater at higher latitudes. b) Precipitation and cloud cover increase with latitude, causing higher latitudes to be cooler. c) Greater amounts of ice occur at higher latitudes, making it cooler at higher latitudes. d) Cold ocean deep water returns to the surface at high latitudes, causing cooling. e) The average solar radiation (sunlight) striking the surface declines from equator to poles.
Which of the following does NOT influence whether sediment is picked up by a stream?
A. whether the stream flows north-south or east-west B. size and density of the sediment C. location of the sediment in the stream D. turbulence of the moving water
The longest days of the year in the Northern Hemisphere are experienced during the
A) time of 24-hour days at the South Pole. B) vernal equinox. C) winter solstice. D) autumnal equinox. E) time that the Sun is directly overhead at the Tropic of Cancer.