What can people know from the crown of an ancient tree found in New York? Why was it possible for these ancient trees let more

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问题 What can people know from the crown of an ancient tree found in New York?
Why was it possible for these ancient trees let more light through than modern ones?

选项 A、Because they were closely spaced, only 3 to 16 feet apart.
B、Because they were smaller plants and shrubs.
C、Because their branches did not fan out as far as to form a shape like umbrella.
D、Because they had very small leaves like that of fern and dropped easily.

答案C

解析 根据题干中let more light through,可以定位到倒数第2段末句These trees likely let more sunlight through than modern-day counterparts,for their branch structures did not fan out as far,forming an umbrella like shape.细节题。这句提到了这些古老的树木可能会比现代的树木能够透射更多的阳光,因为它们树枝的结构不是向四周扩展的很远以致形成伞状,故C正确。这些古树长得很密不是它们能透射更多的阳光的原因,故可排除A。
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