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Updated by ileana L on Jun 18, 2014
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ACTIVATE B2 Unit 2 Vocabulary

Write a definition plus a sample sentence using each word.

2

Avalanche

Avalanche

a large amount of snow and ice or of dirt and rocks that slides suddenly down the side of a mountain.

An avalanche almost killed 3 snowboarders.

57

Become extinct

Become extinct

No longer existing or living.
"Unless we conserve the rainforests, many species will become extinct"

6

Become extinct

Become extinct

Pass from physical life and lose all bodily attributes and functions necessary to sustain life

Scientist aren't sure why dinosaurs became extinct

12

Breeze

Breeze

A light gentle wind

he could feel the breeze on his face

1

Climate change

Climate change

Climate change is the change in climate (i.e. regional temperature, precipitation, extreme weather, etc.) caused by increase in the greenhouse effect.

Climate change will affect the world in the coming years.

31

Come about

Come about

To take place; happen.

32

Come across

Come across

To meet or find by chance: came across my old college roommate in town today.

34

come back

come back

To return to or regain past success after a period of misfortune

14

come from

come from

to originate from or derive from: chocolate comes from the cacao tree

24

come up

come up

To make progress; advance: a former drug addict who has come a long way.

17

Drought

Drought

A long period of time during which there is very little or no rain

The drought caused serious damage to crops

20

earthquake

earthquake

a shaking of a part of the earth's surface that often causes great damage

The earthquake destroyed all the city

25

endanger

endanger

to cause (someone or something) to be in a dangerous place or situation

habitat destruction is endangering the survival of many apes

3

Endangered animal

Endangered animal

A species at risk of extinction because of human activity, changes in climate, changes in predator-prey ratios.

Polar bears are endangered animals.

33

environment

environment

The conditions that surround someone or something : the conditions and influences that affect the growth, health, progress, etc., of someone or something

People are destroying the environment

36

Floods

Floods

an overflow of a large amount of water beyond its normal limits, especially over what is normally dry land.

the villagers had been cut off by floods and landslides

39

foggy

foggy

full of or characterized by fog

a dark and foggy night

41

forest

forest

a large area covered chiefly with trees and undergrowth.

a pine forest

4

Forest fire

Forest fire

An uncontrolled fire in a wooded area.

Forest fires can be very destructive but they are an important part of the lifecycle of some trees.

18

frosty

frosty

very cold, with frost forming on surfaces.

In Russia the strets are always/sometimes frosty

22

gale

gale

a very strong wind.

In Mar del Plata sometimes are gales

9

Global warming

Global warming

Global warming refers to the increased temperature of Earth's surface, including land, water and near-surface air.

Glaciers are melting because of the global warming.

13

Go green

Go green

It is a popular term used to describe the process of changing one's lifestyle for the safety and benefit of the environment.

Buying and using only environmentally friendly products
is a major part of going green.

23

Greenhouse effect

Greenhouse effect

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions.

The atmosphere itself is one big greenhouse effect.

16

Greenhouse gas

Greenhouse gas

It is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range.

Carbon dioxide is one of the most abundant greenhouse gases in Earth's atmosphere.