Topics: Vocabulary and Idioms
When there is a surplus electricity on the grid, these facilities use that power to pump water from the lower _______ to the higher one.
A. reservoir
B. lake
C. puddle
D. pond
Select your answer:

Random Topics:
Possessive Pronouns and QuantifiersPrepositionsFamily VocabularyCommas and Subordinating ConjunctionsPast Narrative TensesPast Simple TenseGerund, Infinitive & Modals-ed or -ingPresent Tenses and ConnectorsGrammar: SyntaxOther quiz:
Vocabulary › ViewWhat is the definition of ‘vigil’?
A. higher-ranked, influential members of a tribe
B. to give in or agree to something
C. to watch over for a period of time
D. to take back
Verbs – Nouns – Adjectives - Adverbs › View
Oil prices have increased ————————- during the past few years.
A. significantally
B. significanty
C. significantly
