Completar frases
Look for the difficult words
1
vine
tinker
cranking
Lilliputian
ORACLE
,
Ariz
.
?
Opening
the
door
to
a
glass
pyramid
,
a
visitor
steps
from
the
arid
heat
of
Arizona
into
a
coastal
fog
desert
that
stretches
toward
a
savanna
.
A
ocean
laps
against
a
rocky
shore
.
A
passageway
leads
to
a
steamy
rain
forest
where
-
necklaced
trees
tower
90
feet
high
.
Here
in
Biosphere
2
,
the
world
?
s
largest
controlled
environment
dedicated
to
climate
research
,
scientists
can
with
scaled
-
down
ecosystems
by
switching
off
sprinklers
and
up
the
thermostat
to
learn
about
the
effects
of
global
warming
out
in
the
real
world
.
2
long
retooling
fated
up
The
facility
has
been
shadowed
by
its
ill
-
1991
maiden
mission
to
establish
an
analogue
of
a
self
-
sustaining
colony
on
another
planet
.
But
after
some
and
successful
,
high
-
profile
studies
?
including
one
that
revealed
warming
oceans
are
killing
corals
?
the
giant
terrarium
(
led
by
the
University
of
Arizona
since
2011
)
is
finally
living
to
its
potential
as
a
site
for
novel
and
risky
research
.
3
reprises
mimicking
enclosure
acre
fare
unveil
probing
In
its
half
-
rain
forest
,
scientists
are
how
tropical
ecosystems
might
weather
late
-
21st
-
century
heat
and
drought
.
Soon
researchers
hope
to
experiment
with
radical
coral
reef
restoration
methods
in
the
?
s
million
-
gallon
ocean
.
And
in
March
2022
the
operation
will
a
Mars
analogue
that
the
original
founders
?
dream
of
a
plant
-
filled
habitat
on
a
lifeless
alien
world
.
Biosphere
2
is
effectively
like
a
time
machine
that
can
preview
a
climate
-
altered
Earth
?
by
changing
the
concentrations
of
gases
in
the
atmosphere
to
those
that
we
think
are
going
to
exist
in
the
future
to
see
how
the
planet
could
,
?
says
the
facility
?
s
current
director
Joaquin
Ruiz
.
Biosphere
2
launched
30
years
ago
,
on
September
26
,
1991
,
when
a
crew
of
eight
?
including
a
physician
,
botanist
and
marine
biologist
?
began
a
two
-
year
residency
inside
this
3
.
14
-
acre
terrarium
.
The
structure
,
a
prototype
for
an
extraterrestrial
habitat
,
was
conceived
by
a
theater
that
partnered
with
businesspeople
to
form
a
company
called
Space
Biosphere
Ventures
.
It
was
intended
to
be
a
hermetically
sealed
ecosystem
where
several
biomes
,
3
,
000
species
of
plants
and
animals
,
and
a
farm
would
provide
the
?
biospherians
?
with
all
the
air
,
water
and
food
they
needed
.
?
At
the
time
,
a
lot
of
scientists
said
it
literally
could
not
be
done
,
that
the
whole
thing
was
going
to
turn
into
green
slime
,
?
says
Jane
Poynter
,
one
of
the
original
biospherians
and
founder
of
spaceflight
company
Space
Perspective
.
5
hangry
panned
dwindled
ooze
The
enclosure
did
not
slime
.
But
after
a
year
,
the
oxygen
had
to
dangerously
low
levels
,
the
farm
was
not
producing
enough
crops
?
and
the
crew
was
suffocating
and
.
To
solve
the
problem
,
some
members
of
Space
Biosphere
Ventures
?
management
team
pumped
oxygen
into
the
building
and
used
a
CO2
?
scrubber
?
without
disclosing
their
actions
publicly
.
When
the
truth
emerged
,
the
mission
lost
credibility
with
scientists
and
was
by
the
press
.
Some
still
consider
this
unfair
.
?
It
was
absurd
that
the
media
portrayed
it
as
a
failure
,
because
it
completely
missed
the
point
that
it
was
an
experiment
,
?
Poynter
says
,
adding
that
the
goal
was
to
discover
what
problems
arise
in
a
human
-
made
biosphere
and
to
learn
from
those
dilemmas
.
The
failure
,
say
several
of
Biosphere
2
?
s
current
staff
,
lay
in
the
lack
of
transparency
?
not
the
lack
of
oxygen
.
6
byproduct
gobbled
deputy
Scientists
did
,
in
fact
,
learn
something
important
from
what
went
wrong
:
the
soil
was
too
rich
in
organic
matter
,
and
its
thriving
bacteria
up
too
much
oxygen
.
At
first
,
the
researchers
could
not
track
down
the
excess
carbon
dioxide
those
microbes
should
have
released
as
a
of
that
oxygen
consumption
.
Eventually
they
found
it
had
chemically
bonded
with
concrete
in
the
building
.
?
It
was
a
light
bulb
moment
,
?
says
John
Adams
,
Biosphere
2
?
s
current
director
.
?
They
could
trace
,
molecule
by
molecule
,
where
[
carbon
]
was
going
and
where
it
was
being
stored
in
ways
that
they
couldn
?
t
outside
?
in
the
real
world
.
When
Columbia
University
took
over
Biosphere
2
from
1996
to
2003
,
researchers
realized
that
,
inside
this
controlled
mini
world
,
they
could
the
CO2
,
heat
and
precipitation
to
predicted
future
levels
and
could
measure
the
effects
on
varied
.
?
Quite
a
few
people
thought
that
this
is
an
tool
because
you
have
a
complicated
system
that
you
can
completely
close
and
risk
damaging
and
learn
how
stressed
systems
behave
,
?
says
Klaus
Lackner
,
director
of
the
Center
for
Negative
Carbon
Emissions
at
Arizona
State
University
,
who
is
not
affiliated
with
Biosphere
2
.
?
The
challenge
is
:
you
have
to
make
sure
it
?
s
actually
reflecting
a
real
system
.
I
think
one
can
walk
that
walk
,
and
some
of
that
[
research
]
is
being
done
now
.
?
Christiane
Werner
,
an
ecosystem
physiologist
at
Germany
?
s
University
of
Freiburg
,
used
the
facility
?
s
rain
forest
to
investigate
how
tropical
plants
and
soil
share
nutrients
to
protect
each
other
from
climate
change
?
and
what
happens
when
those
support
systems
fail
.
Several
recent
studies
have
shown
that
deforestation
and
climate
-
related
tree
death
are
transforming
rain
forests
such
as
the
Amazon
from
carbon
storage
spaces
into
massive
greenhouse
gas
emitters
.
Werner
?
s
goal
is
to
find
what
causes
these
points
.
Doing
so
could
help
researchers
make
better
climate
predictions
and
develop
more
effective
reforestation
techniques
.
9
domed
tracers
traceable
tracked
conjure
Werner
?
s
team
released
forms
of
carbon
and
hydrogen
into
the
glass
-
rain
forest
,
then
turned
off
the
sprinklers
to
induce
a
9
.
5
-
week
?
drought
?
and
where
the
elements
traveled
.
?
That
has
never
been
done
before
,
?
she
says
,
?
and
Biosphere
2
is
the
one
place
on
Earth
where
you
can
do
such
an
experiment
because
you
have
a
fully
grown
forest
you
can
manipulate
.
?
In
the
Amazon
,
it
would
of
course
have
been
impossible
to
a
two
-
month
dry
spell
,
and
the
chemical
could
have
escaped
anywhere
,
she
notes
.
10
wraps
coped
takeaway
buffers
soon
The
to
be
published
results
are
being
kept
under
,
but
Werner
says
the
main
was
the
diverse
ways
various
plant
species
with
the
stress
.
?
Because
they
have
different
functional
responses
,
it
the
whole
forest
,
?
she
explains
,
adding
that
biodiversity
is
therefore
key
to
keeping
forests
stable
in
turbulent
climatic
times
.
Other
experimental
results
from
Biosphere
2
?
s
rain
forest
have
been
.
In
a
2020
study
published
in
Nature
Plants
,
Michigan
State
University
ecologist
Marielle
Smith
and
her
colleagues
up
the
temperature
and
found
that
the
tropical
flora
were
more
resilient
to
high
heat
than
many
had
anticipated
.
12
permits
microbial
symbiotic
deter
At
the
facility
?
s
mini
ocean
,
researchers
are
partnering
with
sciences
company
Seed
Health
to
dose
corals
with
probiotics
to
see
if
this
can
bleaching
(
which
occurs
when
heat
-
stressed
corals
expel
the
algae
that
help
feed
them
)
.
The
scientists
are
also
developing
a
program
to
experiment
with
?
super
corals
?
that
are
bioengineered
to
be
resistant
to
heat
and
acidity
.
?
If
you
?
re
in
Miami
or
Hawaii
,
you
can
?
t
get
to
do
that
research
because
there
?
s
a
fear
that
genetically
modified
corals
will
get
into
nature
,
?
says
Chris
Langdon
,
a
University
of
Miami
marine
biologist
who
is
on
Biosphere
2
?
s
science
advisory
committee
.
?
With
Biosphere
2
being
in
the
middle
of
the
desert
,
there
would
be
absolutely
no
risk
if
anything
escaped
.
?
13
dissolved
lack
leading
acidification
stranger
Langdon
is
no
to
Biosphere
2
?
s
ocean
.
In
the
1990s
he
conducted
research
there
,
revealing
for
the
first
time
that
ocean
causes
corals
to
dissolve
from
a
of
calcium
.
He
says
the
giant
tank
would
also
be
a
good
place
to
test
a
idea
to
achieve
negative
carbon
emissions
:
raising
the
ocean
?
s
pH
by
adding
rocks
,
giving
the
water
a
greater
capacity
to
pull
carbon
dioxide
out
of
the
atmosphere
.
14
precise
hermetically
breathable
Not
all
of
Biosphere
2
?
s
projects
focus
on
climate
.
Its
so
-
called
Space
Analog
for
the
Moon
and
Mars
(
SAM
)
,
currently
under
construction
,
?
is
very
much
,
at
a
scientific
level
and
even
a
philosophical
level
,
similar
to
the
original
Biosphere
,
?
says
SAM
director
Kai
Staats
.
Unlike
other
space
analogues
around
the
world
,
SAM
will
be
a
sealed
habitat
.
Its
primary
purpose
will
be
to
discover
how
to
transition
from
mechanical
methods
of
generating
air
to
a
self
-
sustaining
system
where
plants
,
fungi
and
people
produce
a
balance
of
oxygen
and
carbon
dioxide
.
15
mimic
regolith
dimmer
epiphany
hydroponically
degraded
precarious
morsel
basalt
tinted
Visiting
researchers
will
grow
fruits
and
vegetables
in
SAM
?
s
greenhouse
,
which
is
painted
and
to
block
the
sun
and
the
daylight
on
Mars
.
They
will
also
experiment
with
transforming
(
crushed
rocks
that
resemble
lifeless
Martian
)
into
fertile
soil
.
This
could
have
implications
for
reviving
some
of
Earth
?
s
terrains
.
And
in
light
of
the
status
of
Earth
?
s
climate
,
Staats
hopes
the
scientists
who
live
in
SAM
will
experience
the
kind
of
he
says
was
described
to
him
by
Linda
Leigh
,
one
of
the
original
biospherians
.
?
She
said
that
,
in
such
a
closed
environment
,
you
can
?
t
help
but
be
aware
of
every
breath
you
take
,
every
drink
of
water
you
consume
and
every
of
food
you
eat
because
it
doesn
?
t
go
someplace
where
you
never
see
it
again
,
?
he
says
.
?
It
comes
right
back
to
you
.
?
|