The Natural World

Question 1

Optimal

Answer 1

Best;
most favorite

adj.

Question 2

endure

Answer 2

to live under difficult conditions

v.

Question 3

fuel

Answer 3

to provide energy

v.

Question 4

windswept

Answer 4

unprotected from the wind

adj.

Question 5

hemisphere

Answer 5

one half of the Earth;
one half of a sphere

n.

Question 6

stray

Answer 6

to leave the correct route;

to become separated from the group

Question 7

nocturnal

Answer 7

active at night

adj.

Question 8

obscure

Answer 8

to make difficult to see

v.

Question 9

diurnal

Answer 9

active during the day

adj.

Question 10

navigation

Answer 10

finding and following one’s route

n.

Question 11

lessen

Answer 11

to make it become smaller in size, amount, degree, or importance

v.

Question 12

evaporation

Answer 12

a change from a liquid state to a gas, become its temperature has increased.

n.

Question 13

sedimentation

Answer 13

sediment is solid material that settled at the bottom of a liquid

n.

Question 14

deforestation

Answer 14

the removal of all trees from a large area

n.

Question 15

defense

Answer 15

protection

n.

Question 16

erode

Answer 16

to lose of soil from the action of water and wind

v.

Question 17

inhabit

Answer 17

to live in

v.

Question 18

fascinate

Answer 18

to interest greatly

v.

Question 19

evolve

Answer 19

to develop and change

v.

Question 20

migration

Answer 20

movement from one place to another

n.

Question 21

imperative

Answer 21

a priority;
an urgent need

n.

Question 22

deteriorate

Answer 22

to make it worse

v.

Question 23

feat

Answer 23

a difficult act or achievement

n.

Question 24

breed

Answer 24

to reproduce

v.

Question 25

occupy

Answer 25

to be in a place exist in v.

Question 26

sparse

Answer 26

small in numbers or amount adj.

Question 27

swing

Answer 27

a sudden or big change n.

Question 28

violent

Answer 28

strong; sudden and destructive adj.

Question 29

extreme

Answer 29

very severe or difficult adj.

Question 30

transitional

Answer 30

relating to change from one type to another

Question 31

fringe

Answer 31

the edge of something n.

Question 32

diverse

Answer 32

varied; of many kinds adj.

Question 33

adapt

Answer 33

to change to fit a situation or environment v.

Question 34

thrive

Answer 34

to grow well v.

Question 35

resilient

Answer 35

tough; able to endure difficult conditions adj.

Question 36

stressor

Answer 36

something that caused great difficulties n.

Question 37

minimize

Answer 37

to reduce to the least possible amount v.

Question 38

prolific

Answer 38

producing a lot of something adj.

Question 39

mechanisms

Answer 39

methods n.

Question 40

evaporation

Answer 40

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

Question 41

dilute

Answer 41

to make weaker by mixing with water v.

Question 42

determine

Answer 42

to decide v.

Question 43

accumulate

Answer 43

to gradually increase over time v.

Question 47

evaporation

Answer 47

蒸发 .n. | the process of becoming a vapor

Question 48

Vapor

Answer 48

蒸汽，烟雾 n. | a visible suspension in the air of particles of some substance

Question 49

clay

Answer 49

粘土 泥土 n. | water soaked soil; soft wet earth

Question 50

infertile

Answer 50

不肥沃的 不生育的 adj. | incapable of reproducing

Question 51

spongy

Answer 51

松软的 adj. | easily squashed;

Question 52

reptile

Answer 52

``` 爬行动物 爬虫类 n. any cold-blooded vertebrate of the class Reptilia including tortoises turtles snakes lizards alligators crocodiles and extinct forms ```

Question 53

amphibian

Answer 53

两栖动物 n. | a flat-bottomed motor vehicle that can travel on land or water

Question 54

demonstrate

Answer 54

to show; model v.

Question 55

range

Answer 55

area n.

Question 56

detect

Answer 56

to notice; | become aware of

Question 57

maneuver

Answer 57

a movement n.

Question 58

anticipate

Answer 58

to expect; be ready for something to happen v.

Question 59

to look over v.

Answer 59

scan

Question 60

coordinate

Answer 60

to organize; make work together v.

Question 61

indiscernible

Answer 61

in a way that is impossible to see or notice adv.

Question 62

exotic

Answer 62

unusual; from a foreign place adj

Question 63

renovation

Answer 63

repair or rebuilding n.

Question 64

venue

Answer 64

place where an event is held

Question 65

spectator

Answer 65

a person who watch an event n.

Question 66

remnant

Answer 66

a small leftover piece n.

Question 67

grandeur

Answer 67

greatness

Question 68

merely

Answer 68

only adv.

Question 69

rejuvenate

Answer 69

to refresh; to restore v.

Question 70

deliberately

Answer 70

intentionally; on purpose adv.

Question 71

pastime

Answer 71

a free time activity n.

Question 72

acknowledge

Answer 72

to admit, accept as true v.

Question 73

authority

Answer 73

person with power or special knowledge. n.

Question 74

chunk

Answer 74

a large piece n.

Question 75

industrious

Answer 75

hardworking adj.