Why is Jupiter the largest planet in the solar system?
A. due to a massive collision with another protoplanet
B. Because of its distance from the Sun, the gravitational attraction between it and the Sun is perfectly balanced so as to create a density that results in the largest size of any planet.
C. because that's just the way it happened
D. Being the oldest planetary core, it had more time than the other planets to accumulate enough gas around itself before solar winds blew interplanetary dust away.
Answer: D
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A coarse-grained intrusive igneous rock composed mostly of feldspar and quartz is called
A. basalt. B. andesite. C. gabbro. D. granite. E. ryholite.
Where does a point bar accumulate?
A) on the outside of a meander B) between distributary channels C) at the outer ends of a delta D) on the inside of a meander
All of the following are likely effects of deforestation except
A. increased rate at which carbon dioxide is extracted out of the atmosphere. B. increased rate of soil erosion. C. increased runoff into rivers and streams. D. increased rate of destruction of plant and animal habitats.
Which country in Southwest Asia and North Africa has made efforts to preserve its famed "cedars" forestlands in recent years?
A) Libya B) Lebanon C) Turkey D) Iran E) Iraq