On this map of the south Atlantic, why is the midocean ridge in the center of the ocean?
A) Subduction is consuming seafloor beneath both adjacent continents.
B) Seafloor is added to both sides during seafloor spreading.
C) Subduction has occurred under one and then another of the adjacent continents.
D) Seafloor spreading has stopped in this area.
B) Seafloor is added to both sides during seafloor spreading.
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A renewable resource can be
A. used indefinitely. B. replenished by natural processes within hours to centuries. C. replenished by natural processes in millions of years. D. consumed completely if it is managed within its sustainable yield. E. found and used easily.
The Russian region is about ______ size of the United States
a. half the b. twice the c. the same d. three times
A subgroup of silicates that includes minerals used in ceramics, construction, and drilling for oil is the
A. clay subgroup. B. ferromagnesian subgroup. C. zeolite subgroup. D. mica subgroup.
?Life raft ecosystems are areas with high poverty levels and where most people depend on ecosystem services for survival.
Answer the following statement true (T) or false (F)