In most soils the O and A horizons contain more organic matter than the B and C horizons
Indicate whether the statement is true or false.
Answer: TRUE
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A shaman is generally associated with what type of religion?
A) ethnic religion B) tribal religion C) universalizing religion D) secularism
The yeast in bread dough feeds on sugar to produce carbon dioxide. Why does the dough rise faster in a warmer area?
A) There is a greater number of effective collisions among reacting molecules. B) Atmospheric pressure decreases with increasing temperature. C) The yeast tends to "wake up" with warmer temperatures, which is why baker's yeast is best stored in the refrigerator. D) The rate of evaporation increases with increasing temperature.
Which way is the current moving along this coastline?
A) Out to sea
B) In toward the coast
C) From right to left
D) From left to right
only ______ of the Sun's energy reaches the earth.
a - 1 millionth b - 2 millionth c - 1 trillionth d - 1 billionth e - 2 billionth