What is the difference between a roche moutonnee and a drumlin?
What will be an ideal response?
Answer: Both can reveal the direction of ice flow. They differ in how they formed. A roche moutonnee is an erosional feature—eroded out of bedrock by continental glaciation, and a drumlin is a depositional feature formed of glacial till.
You might also like to view...
The flatness problem and horizon problem
a. are solved if there was a sudden inflation of the universe at time before recombination occurred. b. show that the universe can be described as static and unchanging. c. show that dark matter must be a small fraction of the total mass of the universe. d. imply that the universe was once much colder than it is now. e. imply that the inflationary theory is incorrect.
Of EM waves having these wavelengths, which would be visible?
a. 100 nm b. 500 nm c. 1000 nm d. 1 nm e. none of the above
A wire loop of radius 0.250 m is placed in a uniform magnetic field of magnitude 0.740 T. The field is directed perpendicular to the plane of the loop. If the area of the loop increases at a rate of area 1.50 × 10^–3 m2/s, what is the magnitude of the emf induced in the coil?
a. 1.11 mV b. 3.00 mV c. 0.218 mV d. 0.589 mV
Wine made from fossil fuels is not radioactive because
A. the radioactivity has decayed away B. there is no carbon in such wine C. ancient plants never were radioactive D. the half-life of the key elements is too long