Level 2
Level 1

Unit 1 Changing the planet


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alter
to change.
atmosphere
the air in a particular place; the tone or mood of a place.
avert
to prevent something from happening.
coined by
named or created by someone.
combat
to fight against.
concept
an idea, plan or intention.
consequence
the effect or result of an action.
credible
able to be believed; trustworthy.
criteria
plural form of criterion.
criterion
a principle or standard by which something is judged or decided.
current
at the present time.
decipher
to understand, interpret or identify something.
destroy
to damage something
destruction
the act of damaging something completely
determine
to figure something out.
devoted to
focused only on one thing.
discernible
noticeable or visible.
drags on
to keep going, stretch out or continue.
dramatic
very noticeable; sudden and surprising.
dwelling
a house or home
eliminate
to remove completely.
elimination
the complete removal or destruction of something.
erosion
the gradual destruction of something.
essentially
used to show the importance of something basic or fundamental.
fertilizer
chemicals that help plants to grow.
habitat
the natural home or environment for an animal, plant, or other organism.
permanent
a situation that lasts for a long time or is unchanging
perspective
a way of thinking about something.
preservation
the act of caring for or protecting something.
preserve
to care for or protect something; to keep something in its original state.
profound
very great.
relatively
when one thing is compared to something else.
satisfaction
the state of meeting someone's desires, needs, or expectations.
satisfy
to meet the desires, needs, or expectations of someone.
significant
important.
stave off
to keep away.
struck a chord
to have an effect on something or someone.
subtle
something that is not very noticeable.
tasked with
to be given a responsibility or a job.
transform
to change.
transformation
a dramatic change in form or appearance.
transient
a situation that lasts for a short time or is constantly changing.