Where did the atoms that make up a newborn baby originate?
A. in the earth through geological processes
B. in the explosions of ancient stars
C. in the digestion of the food that the mother ate
D. in the womb of the baby's mother
Answer: B
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The term pegmatite refers to an igneous rock with a particular ____________________ rather than a specific ____________________
Fill in the blank(s) with correct word
The majority of the more than 3,800 minerals are silicates
a. True b. False
Match the mechanical weathering process with the correct definition
A) Expansion of ice forces a rock apart B) Mineral crystal development forces a rock apart C) Reduction of pressure on a pluton results in concentric layers breaking off D) Living materials break down a rock 1) Frost wedging 2) Salt crystal growth 3) Sheeting 4) Biological activity
Precambrian shield areas have been tectonically active since the Phanerozoic
a. True b. False