黃金閱讀 13 - Timberline Vegetation On Mountains - 英檢

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Timberline Vegetation On Mountains 的最後一問(多選題)

Q: At timberline, whether upper or lower there is a profound change in the
growth of trees and other plants.

1. Birch is one of the few species of tree that can survive in the extreme
environments of the upper timberline.

2. There is no agreement among scientists as to exactly why plant growth is
sharply different above and below the upper timberline.

3. The temperature at the upper timberline is probably more important in
preventing tree growth that factors such as the amount of snowfall or
force of winds.

4. The geographical location of an upper timberline has an impact on both the
types of trees found there and their physical characteristics.

5. High levels of ultraviolet light most likely play a greater role in
determining tree growth at the upper timberline that do grazing animals
such as the ibex.

6. Despite being adjacent to the timberline, the alpine tundra is an area
where certain kinds of low trees can endure high winds and very low
temperatures.

小弟我選 3.4.5 答案是 2.4.6 還滿慘的

我向問的是 2.6 該怎麼選出來 還有3為什麼錯

感謝大大的幫忙


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