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scarce – adj. very small in amount or number : not plentiful
filter – v. to remove (something unwanted) by using a filter
sip – v. to drink (a liquid) slowly by taking only small amounts into your mouth
pale – adj. to drink (a liquid) slowly by taking only small amounts into your mouth
tropical – adj. to drink (a liquid) slowly by taking only small amounts into your mouth
theme – n. a particular subject or issue that is discussed often or repeatedly
drought – n. a long period of time during which there is very little or no rain
platform – n. something that allows someone to tell a large number of people about an idea, product, etc.
food chain – n. a series of types of living things in which each one uses the next lower member of the series as a source of food — usually used with the (often used figuratively)
perception – n. the way you think about or understand someone or something — often + of
tap – n. a device for controlling the flow of a liquid or gas from a pipe or container
reclaim – v. to get (a usable material) from materials that have been used before
opt – phrasal verb - to choose to do or be involved in something
