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Correct Answer: D) Touching ice.
Correct Answer: B) 1.4 to 3.1 million atmospheres.
Correct Answer: A) Minerals.
Correct Answer: B) Water sphere.
Correct Answer: D) Settle to the bottom and are become buried in sediments.
Correct Answer: D) Helps detect and measure earthquakes.
Correct Answer: B) Venus.
Correct Answer: B) Till.
Correct Answer: D) Lithosphere.
Correct Answer: C) Clearing the land of trees.
Correct Answer: A) Geologists.
Correct Answer: A) Supernova.
Correct Answer: C) 41*F.
Correct Answer: C) Ellipses.
Correct Answer: B) Meteorology.
Correct Answer: C) Radio waves.
Correct Answer: A) Equator.
Correct Answer: D) Plants.
Correct Answer: D) Orbit.
Correct Answer: B) Observations.
Correct Answer: B) Weather.
Correct Answer: D) The study of fossils.
Correct Answer: A) 200.
Correct Answer: A) Summer and greater than 66$^ \circ$N.