What is the most common type of agriculture in developing countries?
A) dairying
B) subsistence
C) plantation
D) horticulture
E) industrial
B
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Bats are a keystone species.
Answer the following statement true (T) or false (F)
How do hurricanes differ from middle-latitude cyclones?
A. Hurricanes are cold-core lows, while middle-latitude cyclones are warm-core lows B. Hurricanes derive their energy from horizontal temperature contrasts, while middle-latitude cyclones derive energy from latent heat. C. Hurricanes have no fronts and are smaller, while middle-latitude cyclones have fronts and are larger. D. Hurricanes strengthen with height, while middle-latitude cyclones weaken with height.
A map of global city-regions reveals
A. equal numbers of Alpha cities north and south of the equator. B. some of the largest cities in the world do not rank as Alpha cities. C. Tokyo, despite its size, is ranked Beta. D. there are more Beta cities than Gamma cities.
Identify the products in the following chemical reaction. 2 KalSi3O8(s) + 11 H2O --> 2 K+(aq) + 2 OH-(aq) + 4 H4SiO4 (aq) + Al2Si2O5(OH)4(s)
A) potassium ion, hydroxyl ion, silicic acid, kaolinite B) kaolinite ion, hydronic ion, salicic acid, caolinite C) potassium feldspar, water D) potassium feldspar, basic ion, silicate, kaolinite