lesson 3

Question 1

demographic

Answer 1

data relating to the population and different groups within it

Question 2

crop

Answer 2

plants for food

Question 3

vertical

Answer 3

going straight up or down from a level surface or from top to bottom in a picture, etc.

Question 3

drastic

Answer 3

extreme in a way that has a sudden, serious or violent effect on something

Question 4

horizontal

Answer 4

enlarge imageflat and level; going across and parallel to the ground rather than going up and down

Question 5

drought

Answer 5

a long period of time when there is little or no rain

Question 5

pesticide

Answer 5

a chemical used for killing pests, especially insects

Question 6

edible

Answer 6

​fit or suitable to be eaten; not poisonous

Question 7

to prohibit

Answer 7

to stop something from being done or used especially by law
SYNONYM forbid

Question 8

enclose

Answer 8

to build a wall, fence, etc. around something

Question 9

dismantle

Answer 9

to take apart a machine or structure so that it is in separate pieces

Question 9

cog

Answer 9

​enlarge imageone of a series of teeth on the edge of a wheel that fit between the teeth on the next wheel and cause it to move

Question 10

weld

Answer 10

to join pieces of metal together by heating their edges and pressing them together

Question 11

commemorate

Answer 11

to remind people of an important event or person from the past with a special action or object; to exist to remind people of a person or an event from the past

Question 11

inevitable

Answer 11

that you cannot avoid or prevent
synonym unavoidable

Question 12

consequently

Answer 12

as a result; therefore

Question 13

large-scale

Answer 13

involving many people or things, especially over a wide area

Question 14

proponent

Answer 14

a person who supports an idea or course of action

Question 15

transparent

Answer 15

allowing you to see through it

Question 16

stimulate

Answer 16

to make something develop or become more active; to encourage something

Question 17

replenish

Answer 17

to make something full again by replacing what has been used
synonym top up

Question 18

implement

Answer 18

to make something that has been officially decided start to happen or be used
synonym carry out

Question 19

radiation

Answer 19

powerful and very dangerous rays that are sent out from radioactive substances

Question 20

fleet

Answer 20

a group of military ships commanded by the same person

Question 26

wreck

Answer 26

a ship that has sunk or that has been very badly damaged

Question 26

intact

Answer 26

complete and not damaged synonym undamaged

Question 26

initiate

Answer 26

to make something begin synonym set/put in motion

Question 26

erode

Answer 26

to gradually destroy the surface of something through the action of wind, rain, etc.; to be gradually destroyed in this way synonym wear away

Question 26

collaboration

Answer 26

the act of working with another person or group of people to create or produce something

Question 26

feasible

Answer 26

that is possible and likely to be achieved synonym practicable

Question 26

distinct

Answer 26

clearly different or of a different kind

Question 26

sediment

Answer 26

the solid material that settles at the bottom of a liquid

Question 26

innovative

Answer 26

introducing or using new ideas, ways of doing something, etc.

Question 26

fragile

Answer 26

easily broken or damaged

Question 26

precise

Answer 26

clear and accurate synonym exact

Question 26

diminish

Answer 26

to become smaller, weaker, etc.; to make something become smaller, weaker, etc. synonym decrease

Question 26

carve

Answer 26

to make objects, patterns, etc. by cutting away material from a piece of wood or stone, or another hard material

Question 26

haphazard

Answer 26

with no particular order or plan; not organized well

Question 27

refute

Answer 27

to prove that something is wrong synonym rebut

Question 27

dominance

Answer 27

the fact of being more important, powerful or easy to notice than somebody/something else

Question 27

deforestation

Answer 27

the act of cutting down or burning the trees in an area

Question 27

ambiguous

Answer 27

that can be understood in more than one way; having different meanings

Question 27

masterpiece

Answer 27

​a work of art such as a painting, film, book, etc. that is an excellent, or the best, example of the artist’s work

Question 27

ingenious

Answer 27

very suitable for a particular purpose and resulting from clever new ideas

Question 27

meticulous

Answer 27

paying careful attention to every detail synonym fastidious, thorough

Question 27

decipher

Answer 27

to convert something written in code into normal language

Question 27

scrutinize

Answer 27

to look at or examine somebody/something carefully

Question 27

sceptic

Answer 27

a person who usually doubts that claims or statements are true, especially those that other people believe in

Question 27

hypothesis

Answer 27

an idea or explanation of something that is based on a few known facts but that has not yet been proved to be true or correct synonym theory