Terracing, waterways, and windbreaks can help reduce soil erosion.
Answer the following statement true (T) or false (F)
True
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Abyssal plains are very flat because ________
A) they have flat faults, the form flat, planar topography B) basalt volcanos on the seafloor produce little terrain C) sediments accumulate to cover the seafloor topography D) they are not really flat; it is just that there is no data so they are shown as flat
What organization conducted the largest scientific program attempted by physical oceanographers?
a. International Geosphere-Biosphere Programme (IGBP) b. Integrated Ocean Drilling Program (IODP) c. Ridge Interdisciplinary Global Experiment (RIDGE) d. World Climate Research Programme (WCRP)
When agriculture involves endless hours of backbreaking work is it called
A) subsistence. B) peasant. C) labor-intensive. D) swidden. E) none of the above
________ is a frothy volcanic glass with so much void space that it can actually float.
A. Obsidian B. Sponge rock C. Lava D. Pumice E. A floater