Vocabulary

• around the world: In or to many countries.
• at night: During the night; in the nighttime.
• in danger: Exposed to the risk of harm, injury, or loss.
• look at: To use your eyes to focus on something
• such as: For example; like
• demand on: A strong need or requirement that places a burden or strain.
• think of: To look on as (being something specific); consider
• call for: To demand, need or require (an action or thing)
• immune: Having a special protection from, e.g. the law
• extremely: In a way that is much more than usual or expected
• improve: To make, or become, something better
• native: Someone from or born in a specific country
• variety: Particular type of thing or person
• disease: Illness that affects a person, animal, or plant
• decline: To bend towards the ground
• demand: Desire customers have to buy product, service
• climate: Typical weather conditions in a particular place
• contribute: To be a factor in causing something to happen
• spread: A big meal, often laid out as a buffet
• drain: Hole or pipe that water, waste etc. flows into
• absorb: To take up all attention / energy of something
• numerous: Existing in large numbers
• cause: Belief, goal or organization that people support
• population: Number of people who live in a country, area etc.
• rapidly: With great speed; quickly
• integral: Being an essential part of something; necessary
• facilitate: To make an action or process easier
• trade: A specific industry, e.g. shoe making
• serve: To act in a particular position or office
• extinction: When every example of animal, plant is dead
• reduce: To try to decrease, e.g. your weight if overweight
• dwell: To live in a certain place
• habitat: Natural place where a plant or animal lives
• suggest: To mention something that could be done; propose
• harmony: Pleasing, attractive combination of parts, things
• source: Piece of information; a person giving information
• stream: To send a constant flow of data over the internet
• invasive: Entering the body, etc. in a destructive way
• destruction: Act of destroying; damaging beyond repair
• depend: Be controlled or determined by (someone/something)
• algae: Green organisms that live in still water
• important: Having power or authority
• pain: Strong feeling of hurt or discomfort
• chop: To cut into pieces with an up and down motion
• promise: To say you will certainly do something
• malaria: Disease caused by being bitten by a mosquito
• continue: To do something without stopping, or after pausing
• fill: To make something full
• protect: To defend someone or something from harm or danger
• drive: A person's ambition and motivation to do something
• footprint: Mark left by a foot of an animal or human
• multitude: Large number of people or things; crowd
• start: First time or place that a thing exists; beginning
• world: All the humans, events, activities on the earth
• disappear: To no longer see because it's not there any more
• physiology: Ways in which the parts of a living thing operate
• human: A person; a man, woman or child
• keep: Large, strong tower in the middle of a castle
• precipitation: Material that falls from sky; rain, snow or hail
• lullaby: Quiet song intended to lull a child to sleep
• call: A order or request for action
• amphibian: Cold-blooded animal that lives on land or in water
• nighttime: Time after sunset and before sunrise
• trout: Fish that lives in rivers and streams