What is the power rating of a light bulb when 0.8 A flow through it when connected to a 120-V outlet?
A) 12 W
B) 15 W
C) 60 W
D) 96 W
E) 120 W
D
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Sea otters play a role in maintaining the biodiversity of which ecosystem?
a. Tidepools b. coastal kelp forests c. coastal sandy beaches d. open ocean areas e. Estuaries
What surface feature is present on Earth above the rising limb of a mantle convection cell?
a. trench b. spreading ridge c. hot spot d. continental mountain chain e. volcanic island arc
What is the deadliest tornado on record in the United States?
A) the Tri-State tornado of 1925 B) the Fargo, ND tornado of 1957 C) the Moore, OK tornado of 1999 D) the Natchez tornado of 1840
As they formed, due to their high temperatures and comparatively weak gravitational fields, which planets were unable to retain appreciable amounts of hydrogen, helium, and ammonia?
A) Neptune and Uranus B) Mercury and Earth C) Jupiter and Uranus D) Jupiter and Neptune E) Uranus and Pluto