[ Grammar ]
A rock is _______________ than a pencil.
A. heavy
B. heavyer
C. more heavy
D. heavier

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Vocabulary › ViewSquelch (SKWELCH)
A. Threaten
B. Yelp
C. Revive
D. Squash
Science › View
The branch of physical geography dealing with the ocean.
A. Meteorology
B. Geomorphology
C. Geology
D. Oceanography