Economically valuable deposits of phosphorite are composed of which key mineral?
A. Asbestos
B. Gypsum
C. Calcite
D. Apatite
Answer: D
Environmental & Atmospheric Sciences
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The light blue area just off the Australian coast, as shown here, is called the
A) continental platform.
B) seashore.
C) continental shelf.
D) abyssal plain.
Environmental & Atmospheric Sciences
What are the most common, large-scale features on a depositional coast?
A) Barrier islands B) Moraines C) Sand spits D) Deltas
Environmental & Atmospheric Sciences
Phytoplankton biomass can be measured by satellite.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
What is the primary factor that explains migration?
A) climate B) economic incentives C) historical circumstances D) stage of the life-cycle (retirement, etc.) E) supply curves
Environmental & Atmospheric Sciences