Nhận biết (M1)

Giant dust plumes from the Sahara Desert that blow across the Atlantic Ocean can have complex and opposing effects on tropical cyclones. On one hand, the dust can enhance the formation of ice clouds in the cyclone’s core, increasing precipitation. __________ the dust can lower sea surface temperatures around the cyclone’s core, weakening the storm.

Which choice completes the text with the most logical transition?

• A.

  On the other hand,

• B.

  Previously

• C.

  For example,

• D.

  In other words,