How are kettle lakes and the Great Lakes formed? Use at least three of the following words: terminal moraine, medial moraine, kettle lakes, glacier, and esker.

ń, wǒ shuō yīngyǔ, dàn wǒ huì shuō qítā yǔyán, rú xībānyá yǔ fǎyǔ yìdàlì yǔ hé pǔtōnghuà, suǒyǐ bùyào pànduàn, dànshì

answer; ///(true)/// fusion occurs in the sun's core;