A current of rising warm air is called a thermal. Which sentence is a supporting detail for the main idea?

A) The thermosphere is a layer in the atmosphere.

B) Trade winds blow toward the equator from the Tropics.

C) When birds are in a thermal, the moving air carries them along.

D) Wind speeds are measured with anemometers.

Answers

Answer 1
Answer: La bonne réponse est C)

Explanation: La bonne réponse est C) Lorsque les oiseaux sont dans un thermique, l’air en mouvement les emporte. Une thermique est un courant d'air chaud ascendant qui s'élève dans l'atmosphère et qui peut être utilisé par les oiseaux pour voler avec moins d'effort. La phrase C) illustre donc bien l'idée principale de ce que peut être une thermique. Une thermosphère est une couche de l'atmosphère, mais cette phrase n'illustre pas l'idée principale de ce qu'est une thermique. Les alizés sont des vents réguliers qui soufflent vers l'équateur depuis les tropiques, mais cette phrase n'illustre pas non plus l'idée principale de ce qu'est une thermique. La vitesse du vent est mesurée avec des anémomètres, mais cette phrase n'illustre pas non plus l'idée principale de ce qu'est une thermique.

Answer 2
Answer:
C. When birds are in thermal, the moving air Carries them along

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