Vocabulary

• such as: For example; like
• consists of: Is made up or composed of.
• in turn: One after the other in a sequence or rotation.
• for example: As an illustration or instance.
• in the presence of: While someone or something else is present.
• come from: To have as your native country or city
• in addition to: Besides; as well as
• presence: The same place or area that a person is
• extreme: Very great in degree
• respiratory: (Medical) concerning breathing
• category: Groups of things that are similar in some way
• atmosphere: Air around us
• climate: Typical weather conditions in a particular place
• contribute: To be a factor in causing something to happen
• environment: Natural world in which plants and animals live
• toxic: Poisonous; harmful
• increase: To make or become larger in size or amount
• distress: State of great sadness, anxiety or pain
• divide: To split numbers by another number, e.g. 6 / 2 = 3
• occur: To come to pass or to happen
• volatile: Able to easily become a gas at a low temperature
• trap: Device used for catching animals
• release: To free someone from a responsibility or burden
• reaction: Bodily response to a drug or something eaten
• result: Something produced through tests or experiments
• planet: One of the bodies that orbit the sun
• create: To make, cause, or bring into existence
• generation: Act or process of producing or causing something
• rate: To assess something or consider its qualities
• agriculture: The science of farming
• lead: Wire for electricity, computer, etc.; cable
• mold: Distinctive type of character or nature
• ground: To break (coffee, etc.) into tiny bits with machine
• organic: Developing naturally and without a set structure
• reduce: To try to decrease, e.g. your weight if overweight
• produce: Fresh foods such as fruits and vegetables
• energy: Physical or mental strength
• radiation: Energy transmitted as rays, waves or particles
• fossil: Plant or animal that became rock after many years
• dioxide: An oxide containing two oxides per molecule
• carbon: Chemical element with an atomic number of 6
• methane: Colorless gas without smell often used as fuel
• irritate: To disturb, anger, or upset someone
• decrease: To reduce the size, amount or number of something
• transportation: Act of moving people or goods between places
• flood: To quickly appear unexpectedly and in volume
• natural: Being as one would expect; being usual or normal
• rise: To wake up and get out of bed after sleeping
• turn: To become (a particular age)
• change: To exchange one set of clothes for another
• haze: Dust, smoke, or gas that darkens or clouds the air
• nitrogen: A colorless chemical element without a smell
• pollution: Dangerous substances released into an environment
• pose: To be or exist as (a problem, threat etc.)
• mercury: Silver-white metal that is used in thermometers
• burn: To destroy with fire
• pollen: Fine, usually yellow powder produced by plants
• ultraviolet: Concerning light waves that are extremely short
• type: Printed letters or blocks used for printing them
• adverse: Negative or harmful
• combustion: An act or instance of burning
• human: A person; a man, woman or child
• gasoline: Liquid we put in cars to make them run
• sulfur: Smelly yellow chemical often found near volcanoes
• ozone: Gas protecting the earth from the sun
• smog: Fog that is combined with other harmful gases
• oxide: Compound from combining oxygen with a chemical