Unit 1: The Natural World

Question 1

(n) The natural world

Answer 1

Environment

Question 2

(v) To reach past, get bigger

Answer 2

Extend

Question 3

(n) A large number, a collection

Answer 3

Array

Question 4

(n) loss of soil from action of water or wind

Answer 4

Erosion

Question 5

(Adj) living in the water

Answer 5

Aquatic

Question 6

(Adj) living on the land

Answer 6

Terrestrial

Question 7

(V) to cut down

Answer 7

Fell

Question 8

(N) the natural are where a plant or animal lives

Answer 8

Habitat

Question 9

(N) a strong effect

Answer 9

Impact

Question 10

(N) protection

Answer 10

Defense

Question 11

(V) to prevent, slow down

Answer 11

Inhibit

Question 12

(N) plants

Answer 12

Vegetation

Question 13

(N) the removal of all trees from a large area

Answer 13

Deforestation

Question 14

(N) the cutting down of trees for commercial purposes

Answer 14

Logging

Question 15

(V) to disappear

Answer 15

Vanish

Question 16

(Adj) many, numerous

Answer 16

Myriad

Question 17

(N) damage to air, water, etc

Answer 17

Pollution

Question 18

(V) to keep from changing, maintain

Answer 18

Stabilize

Question 19

(V) to catch

Answer 19

Intercept

Question 20

(N) food

Answer 20

Nutrient

Question 21

(N) type; a basic group in biological classification

Answer 21

Species

Question 22

(V) to live under difficult conditions

Answer 22

Endure

Question 23

(N) a priority; an urgent need

Answer 23

Imperative

Question 24

(N) a part or feature

Answer 24

Aspect

Question 25

(V) to interest greatly

Answer 25

Fascinate

Question 26

(N) a person who watches something

Answer 26

Observer

Question 27

(V) to provide energy

Answer 27

Fuel

Question 28

(V) to live in

Answer 28

Inhabit

Question 29

(Adj) active during the day

Answer 29

Diurnal

Question 30

(N) a difficult act or achievement

Answer 30

Feat

Question 31

(N) movement from one place to another

Answer 31

Migration

Question 32

(V) to reproduce

Answer 32

Breed

Question 33

(Adj) active at night

Answer 33

Nocturnal

Question 34

(Adj) unprotected from the wind

Answer 34

Windswept

Question 35

(V) to make difficult to see

Answer 35

Obscure

Question 36

(V) to leave the correct route; become separated from the group

Answer 36

Stray

Question 37

(Adj) best, most favorable

Answer 37

Optimal

Question 38

(N) finding the way from one place to another

Answer 38

Navigation

Question 39

(N) one half of the Earth; also, one half of a sphere

Answer 39

Hemisphere

Question 40

(V) to develop gradually

Answer 40

Evolve

Question 41

(adj) relating to change from one type to another

Answer 41

Transitional

Question 42

(n) behavior to deal with difficult situations

Answer 42

mechanism

Question 43

(v) to gradually increase over time

Answer 43

accumulate

Question 44

(v) to be in a place, exist in

Answer 44

occupy

Question 45

(v) to reduce to the least possible amount

Answer 45

minimize

Question 46

(v) to grow well

Answer 46

thrive

Question 47

(n) the edge of something

Answer 47

fringe

Question 48

(adj) varied, of many kinds

Answer 48

diverse

Question 49

(v) to change to fit a situation or environment

Answer 49

adapt

Question 50

(adj) strong; sudden and destructive

Answer 50

violent

Question 51

(n) wetness or water

Answer 51

moisture

Question 52

(adj) tough, able to endure difficult conditions

Answer 52

resilient

Question 53

(adj) small in numbers or amount

Answer 53

sparse

Question 54

(adj) very severe or difficult

Answer 54

extreme

Question 55

(v) to make weaker by mixing with water

Answer 55

dilute

Question 56

(n) the change from liquid to gas; loss of water to the air

Answer 56

evaporation

Question 57

(n) a sudden or big change

Answer 57

swing

Question 58

(v) to decide

Answer 58

determine

Question 59

(n) sth that causes great difficulties

Answer 59

stressor

Question 60

(adj) producing a lot of something

Answer 60

prolific