Choose the option that matches the pore particles with the cement it forms upon reaction with water
A) Feldspar grains become hematite; iron-silicate grains form quartz.
B) Silicate grains become clay; iron-oxide grains form hematite.
C) Pyroxene grains become clay; carboN-silicate grains form hematite.
D) Feldspar grains become clay; iron-silicate grains form hematite.
Answer: D
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Global food supplies can be made more available and affordable by
A. purchasing food from big box stores. B. consuming more meat. C. eliminating subsidies. D. wasting less food. E. promoting free trade.
What specifically connects the continental shelves to the deep-ocean floor?
a. Continental rise b. Continental slope c. Shelf break d. Submarine canyon
Most igneous rocks are classified by:
a. texture. b. composition. c. size. d. texture and composition. e. composition and size.
Composite volcanoes consist almost completely of lava flows
Indicate whether the statement is true or false