49 According to the passage, which statement about the phytoplankton is true?
(A) These tiny microscopic plants underwater do not change the weather.
(B) These tiny microscopic underwater plants migrated from the atmosphere.
(C) These tiny microscopic underwater plants are at the top of the food chain.
(D) These tiny microscopic plants flourished underwater over the past three years.

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統計： A(21), B(73), C(28), D(204), E(0) #1150933

詳解 (共 2 筆)

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(B) The oceans are t...
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    These satellite太空, 人造衛星 images show the ebb水, 落潮 and flow移動, （尤指液體、氣體或電）流動 of plant life on earth over three years, taken by a NASA satellite called SeaWiFS.
The blue areas are void of plants, the red spots indicate表明, 標示 an overabundance過多, and the green areas show where plants are thriving興旺.
This is the earth breathing. The plants are taking up CO2, and they’re breathing out oxygen. As suggested by oceanographers海洋學家, almost half of that activity is going on underwater. The oceans are teeming人山人海 with tiny microscopic plants called phytoplankton浮游植物. They are at the bottom of the food chain, and they basically feed all sea life. Like all plants, phytoplankton浮游植物 absorbs吸收、消減；緩解、明白, 理解、全神貫注、（公司等）承擔 CO2 from the atmosphere. 
    These images show that phytoplankton浮游植物 boomed over向上提 the last three years. That’s one of the key benefits of these satellite images. Over time隨著時間 scientists will use them to help predict how plants might respond as we burn more fossil fuels, and as global CO2 levels rise. Many scientists think such greenhouse gasses will cause global warming. They suggest that it is related to recent climate change. However, what they don’t know is how life in the ocean will respond over the long haul拉，拖大量, 魚,一段時間、（艱苦的）旅程 if CO2 levels keep rising.
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