Large benthic algae (seaweeds) have holdfasts that absorb nutrients in the same way roots absorb nutrients for land plants.
Answer the following statement true (T) or false (F)
False
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When the Moon assumes its characteristic thin crescent shape, the position of the Sun is
A. at right angles to the line between the Moon and Earth. B. almost directly in back of the Moon. C. almost directly behind the Earth, so Earth is between the Sun and the Moon.
A ball player wishes to determine pitching speed by throwing a ball horizontally from an elevation of 5 m above the ground. The player sees the ball land 20 m down range. What is the player's pitching speed?
A) 5 m/s B) 10 m/s C) 20 m/s D) 25 m/s E) none of the above
In contrast to a good global climate model, a good numerical weather forecasting model must focus on the
A) cryosphere. B) hydrosphere. C) lithosphere. D) biosphere. E) none of the above
Which layer of the Earth contains the greatest mass?
A. Asthenosphere B. Mantle C. Crust D. Lithosphere E. Core