What is the cause of Jupiter's extremely high-energy radiation belts?
A) an enormous magnetic field that captures high energy particles
B) the capture of a high number of metallic asteroids
C) tidal forces due to the interaction between Jupiter and its moons
D) the remnants of a massive collision between Jupiter and another large body
A
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Why do you typically find bigger rocks along the banks of a fast-moving stream and smaller rocks and pebbles beside a slower-moving stream?
A. Slow-moving streams carry only dissolved sediments. B. As a stream slows, it deposits its smaller sediments first. C. Fast-moving streams carry only large sediments. D. As a stream slows, it deposits its larger sediments first.
The temperature of a red giant increases rapidly because ________
A) fusion increases and gives off heat B) endothermic chemical reactions occur C) exothermic chemical reactions occur D) friction from the collapse creates heat E) gravitational energy is converted to heat
The first goal of the Stockholm Convention is to ________
A) end the use and release of 12 POPs shown to be the most dangerous B) educate women about birth control in developing countries C) prevent the spread of the AIDS D) reduce global warming by preventing the manufacture of HFCFs E) reduce exposure to allergens and teratogens in developing countries
The Dakota Sandstone is threatened primarily by:
a. pollution. b. subsidence. c. saltwater intrusion. d. extensive use. e. lack of recharge.