The farm machinery that opens a furrow through the soil and mulch of dead weeds, drops seeds and fertilizer and then closes the furrow is engaged in the erosion-reducing technique of
A) creating shelterbelts and chemically fertilizing the soil.
B) creating strip cropping in one operation.
C) no-till planting.
D) organic pest control.
C
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What is the horizontal distance from C to B?
The question is based on this contour line map with elevations shown in feet.
• North is to the top of the map.
• Streams are shown with dashed lines.
• A graphic scale for measuring horizontal distances is shown below the map.
• Estimate elevations between contour lines to the nearest half-contour interval; assume that the top of a
hill is one-half-contour interval higher than the highest contour line shown.
What will be an ideal response?
The explosion of the volcano ________ in 1883 generated a giant tsunami that killed tens of thousands of people
Fill in the blank(s) with correct word
Which of the following soils has the smallest diameter particles?
a. humus b. sand c. silt d. clay
In 2010, there were 23 official EU business languages.
a. true b. false