If Science Could Help (H3)
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Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
Energy that comes from renewable, zero-emission sources that do not pollute the atmosphere.
Power obtained by harnessing the energy of the sun's rays.
To be wasted, unused, or thrown away without being helpful.
Used to introduce a statement that makes something clear or helps explain a result; in spite of any doubts.