Based on the current directions of plate motion, China and the West Coast of the United States are getting closer.
Answer the following statement true (T) or false (F)
True
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As the hydronium ion concentration increases, the pH
A) goes down. B) gets larger. C) starts to affect the OH- concentration. D) starts to alter the chemical properties of the water molecules. E) stays constant.
The frontal system with the STEEPEST lapse rate is
A) warm front. B) cold front. C) arctic front. D) occluded front.
Put the layers of an ophiolite complex in order from top to bottom:
A) Gabbro B) Deep-sea sediments or sedimentary rocks C) Sheeted dike complex D) Pillow basalts 1) Layer 1 (Uppermost layer) 2) Layer 2 3) Layer 3 4) Layer 4 (Lowermost layer)
These gymnosperms made their appearance in the Triassic and became very widespread:a
angiosperms d. seed ferns b. cycads e. A and C c. horsetail rushes