Multiple Choice
Earth's innermost core is solid,not liquid,because
A) the core temperature is too low to melt iron.
B) differentiation caused all of the heavy,solid material to sink to the bottom while Earth was forming.
C) all the liquid has moved up into the mantle via convection.
D) the pressure is too high for a liquid state.
Correct Answer:
Verified
Correct Answer:
Verified
Q5: Which is denser,the mantle of Earth or
Q6: Give a specific example of impacts of
Q7: On Mars,water ice is present primarily in
Q8: The age of the Solar System can
Q10: There are two main forces that shape
Q11: Volcanoes on Earth typically occur in the
Q13: According to studies of impact cratering,which of
Q15: Plate tectonics is NOT responsible for the
Q54: The interior of the Earth is hot
Q90: Earth's magnetic axis and its spin axis