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Dissolved minerals give its water a bright blue color .
TQA:T_0154_6
2
give
true
give
[ "what", "_", "_", "gives", "something", "_", "something", "?" ]
[ "Dissolved minerals" ]
[ [ 0, 2 ] ]
The edge of the spring is covered with thick orange mats of bacteria .
TQA:T_0154_7
6
covered
true
cover
[ "what", "is", "_", "covered", "_", "with", "something", "?" ]
[ "The edge of the spring", "edge of the spring" ]
[ [ 0, 5 ], [ 1, 5 ] ]
The edge of the spring is covered with thick orange mats of bacteria .
TQA:T_0154_7
6
covered
true
cover
[ "what", "is", "something", "covered", "_", "with", "_", "?" ]
[ "thick orange mats of bacteria", "bacteria" ]
[ [ 8, 13 ], [ 12, 13 ] ]
The bacteria use the minerals in the hot water to make food .
TQA:T_0154_8
2
use
true
use
[ "what", "does", "something", "use", "_", "_", "_", "?" ]
[ "the minerals in the hot water" ]
[ [ 3, 9 ] ]
The bacteria use the minerals in the hot water to make food .
TQA:T_0154_8
2
use
true
use
[ "what", "_", "_", "uses", "something", "_", "_", "?" ]
[ "The bacteria" ]
[ [ 0, 2 ] ]
The bacteria use the minerals in the hot water to make food .
TQA:T_0154_8
2
use
true
use
[ "why", "does", "something", "use", "something", "_", "_", "?" ]
[ "to make food" ]
[ [ 9, 12 ] ]
The bacteria use the minerals in the hot water to make food .
TQA:T_0154_8
10
make
true
make
[ "what", "is", "_", "made", "_", "_", "_", "?" ]
[ "food" ]
[ [ 11, 12 ] ]
The bacteria use the minerals in the hot water to make food .
TQA:T_0154_8
10
make
true
make
[ "where", "is", "something", "made", "_", "_", "_", "?" ]
[ "hot water", "in the hot water" ]
[ [ 7, 9 ], [ 5, 9 ] ]
The bacteria use the minerals in the hot water to make food .
TQA:T_0154_8
10
make
true
make
[ "who", "_", "_", "makes", "something", "_", "_", "?" ]
[ "The bacteria" ]
[ [ 0, 2 ] ]
Heated groundwater may become trapped in spaces within rocks .
TQA:T_0155_0
3
become
true
become
[ "what", "is", "_", "becoming", "something", "_", "_", "?" ]
[ "Heated groundwater" ]
[ [ 0, 2 ] ]
Heated groundwater may become trapped in spaces within rocks .
TQA:T_0155_0
3
become
true
become
[ "what", "is", "something", "becoming", "_", "_", "_", "?" ]
[ "trapped" ]
[ [ 4, 5 ] ]
Heated groundwater may become trapped in spaces within rocks .
TQA:T_0155_0
3
become
true
become
[ "where", "is", "something", "becoming", "something", "_", "_", "?" ]
[ "in spaces within rocks" ]
[ [ 5, 9 ] ]
Heated groundwater may become trapped in spaces within rocks .
TQA:T_0155_0
4
trapped
true
trap
[ "what", "might", "_", "trapped", "_", "_", "somewhere", "?" ]
[ "Heated groundwater" ]
[ [ 0, 2 ] ]
Heated groundwater may become trapped in spaces within rocks .
TQA:T_0155_0
4
trapped
true
trap
[ "where", "might", "something", "trapped", "_", "_", "_", "?" ]
[ "in spaces within rocks" ]
[ [ 5, 9 ] ]
Pressure builds up as more water seeps into the spaces .
TQA:T_0155_1
1
builds
true
build
[ "how", "does", "something", "build", "_", "up", "_", "?" ]
[ "up as more water seeps into the spaces", "as more water seeps into the spaces" ]
[ [ 2, 10 ], [ 3, 10 ] ]
Pressure builds up as more water seeps into the spaces .
TQA:T_0155_1
1
builds
true
build
[ "what", "_", "_", "builds", "_", "up", "_", "?" ]
[ "Pressure" ]
[ [ 0, 1 ] ]
Pressure builds up as more water seeps into the spaces .
TQA:T_0155_1
6
seeps
true
seep
[ "what", "does", "something", "seep", "_", "into", "_", "?" ]
[ "the spaces" ]
[ [ 8, 10 ] ]
Pressure builds up as more water seeps into the spaces .
TQA:T_0155_1
6
seeps
true
seep
[ "what", "_", "_", "seeps", "_", "into", "something", "?" ]
[ "water" ]
[ [ 5, 6 ] ]
During each eruption , it may release as much as 30,000 liters of water !
TQA:T_0155_10
6
release
true
release
[ "what", "is", "_", "releasing", "something", "_", "_", "?" ]
[ "it" ]
[ [ 4, 5 ] ]
During each eruption , it may release as much as 30,000 liters of water !
TQA:T_0155_10
6
release
true
release
[ "what", "is", "something", "releasing", "_", "_", "_", "?" ]
[ "as much as 30,000 liters of water" ]
[ [ 7, 14 ] ]
During each eruption , it may release as much as 30,000 liters of water !
TQA:T_0155_10
6
release
true
release
[ "when", "is", "something", "releasing", "something", "_", "_", "?" ]
[ "During each eruption" ]
[ [ 0, 3 ] ]
When the pressure becomes great enough , the water bursts out of the ground at a crack or weak spot .
TQA:T_0155_2
3
becomes
true
become
[ "what", "_", "_", "becomes", "someone", "_", "_", "?" ]
[ "pressure", "the pressure" ]
[ [ 2, 3 ], [ 1, 3 ] ]
When the pressure becomes great enough , the water bursts out of the ground at a crack or weak spot .
TQA:T_0155_2
3
becomes
true
become
[ "what", "does", "something", "become", "_", "_", "_", "?" ]
[ "great", "great enough" ]
[ [ 4, 5 ], [ 4, 6 ] ]
This is called a geyser .
TQA:T_0155_3
2
called
true
call
[ "what", "is", "_", "called", "something", "_", "_", "?" ]
[ "This" ]
[ [ 0, 1 ] ]
This is called a geyser .
TQA:T_0155_3
2
called
true
call
[ "what", "is", "something", "called", "_", "_", "_", "?" ]
[ "geyser", "a geyser" ]
[ [ 4, 5 ], [ 3, 5 ] ]
When the water erupts from the ground , the pressure is released .
TQA:T_0155_4
3
erupts
true
erupt
[ "what", "is", "_", "erupting", "_", "_", "_", "?" ]
[ "water", "the water" ]
[ [ 2, 3 ], [ 1, 3 ] ]
When the water erupts from the ground , the pressure is released .
TQA:T_0155_4
3
erupts
true
erupt
[ "where", "is", "something", "erupting", "_", "from", "_", "?" ]
[ "from the ground", "the ground" ]
[ [ 4, 7 ], [ 5, 7 ] ]
When the water erupts from the ground , the pressure is released .
TQA:T_0155_4
11
released
true
release
[ "what", "is", "_", "released", "_", "_", "_", "?" ]
[ "pressure", "the pressure" ]
[ [ 9, 10 ], [ 8, 10 ] ]
When the water erupts from the ground , the pressure is released .
TQA:T_0155_4
11
released
true
release
[ "when", "is", "something", "released", "_", "_", "_", "?" ]
[ "When the water erupts from the ground", "the water erupts from the ground" ]
[ [ 0, 7 ], [ 1, 7 ] ]
Then more water collects and the pressure builds up again .
TQA:T_0155_5
3
collects
true
collect
[ "what", "is", "_", "collected", "_", "_", "_", "?" ]
[ "water", "more water" ]
[ [ 2, 3 ], [ 1, 3 ] ]
Then more water collects and the pressure builds up again .
TQA:T_0155_5
7
builds
true
build
[ "what", "is", "_", "built", "_", "up", "_", "?" ]
[ "pressure", "the pressure" ]
[ [ 6, 7 ], [ 5, 7 ] ]
This leads to another eruption .
TQA:T_0155_6
1
leads
true
lead
[ "what", "does", "something", "lead", "_", "to", "_", "?" ]
[ "another eruption" ]
[ [ 3, 5 ] ]
This leads to another eruption .
TQA:T_0155_6
1
leads
true
lead
[ "what", "_", "_", "leads", "_", "to", "something", "?" ]
[ "This" ]
[ [ 0, 1 ] ]
You can see a picture of it in Figure 13.17 .
TQA:T_0155_8
2
see
true
see
[ "what", "can", "someone", "see", "_", "_", "_", "?" ]
[ "You", "a picture of it" ]
[ [ 0, 1 ], [ 3, 7 ] ]
You can see a picture of it in Figure 13.17 .
TQA:T_0155_8
2
see
true
see
[ "where", "can", "someone", "see", "something", "_", "_", "?" ]
[ "in Figure 13.17" ]
[ [ 7, 10 ] ]
You can see a picture of it in Figure 13.17 .
TQA:T_0155_8
2
see
true
see
[ "who", "can", "_", "see", "something", "_", "_", "?" ]
[ "You" ]
[ [ 0, 1 ] ]
The geyser erupts faithfully every 90 minutes , day after day .
TQA:T_0155_9
2
erupts
true
erupt
[ "how", "does", "something", "erupt", "_", "_", "_", "?" ]
[ "faithfully" ]
[ [ 3, 4 ] ]
The geyser erupts faithfully every 90 minutes , day after day .
TQA:T_0155_9
2
erupts
true
erupt
[ "what", "_", "_", "erupts", "_", "_", "_", "?" ]
[ "The geyser", "geyser" ]
[ [ 0, 2 ], [ 1, 2 ] ]
The geyser erupts faithfully every 90 minutes , day after day .
TQA:T_0155_9
2
erupts
true
erupt
[ "when", "does", "something", "erupt", "_", "_", "_", "?" ]
[ "every 90 minutes , day after day", "every 90 minutes", "day after day" ]
[ [ 4, 11 ], [ 4, 7 ], [ 8, 11 ] ]
Most groundwater does not flow out of an aquifer as a spring or geyser .
TQA:T_0156_0
4
flow
true
flow
[ "what", "doesn't", "_", "flow", "_", "_", "_", "?" ]
[ "Most groundwater" ]
[ [ 0, 2 ] ]
Most groundwater does not flow out of an aquifer as a spring or geyser .
TQA:T_0156_0
4
flow
true
flow
[ "what", "doesn't", "something", "flow", "_", "as", "_", "?" ]
[ "a spring or geyser" ]
[ [ 10, 14 ] ]
Most groundwater does not flow out of an aquifer as a spring or geyser .
TQA:T_0156_0
4
flow
true
flow
[ "what", "doesn't", "something", "flow", "_", "from", "_", "?" ]
[ "an aquifer", "out of an aquifer" ]
[ [ 7, 9 ], [ 5, 9 ] ]
So to use the water thats stored in an aquifer people must go after it .
TQA:T_0156_1
2
use
true
use
[ "what", "is", "_", "used", "_", "_", "_", "?" ]
[ "the water thats stored in an aquifer", "the water" ]
[ [ 3, 10 ], [ 3, 5 ] ]
So to use the water thats stored in an aquifer people must go after it .
TQA:T_0156_1
2
use
true
use
[ "who", "_", "_", "uses", "something", "_", "_", "?" ]
[ "people" ]
[ [ 10, 11 ] ]
So to use the water thats stored in an aquifer people must go after it .
TQA:T_0156_1
6
stored
true
store
[ "what", "is", "_", "stored", "_", "_", "somewhere", "?" ]
[ "water", "the water" ]
[ [ 4, 5 ], [ 3, 5 ] ]
So to use the water thats stored in an aquifer people must go after it .
TQA:T_0156_1
6
stored
true
store
[ "where", "is", "something", "stored", "_", "_", "_", "?" ]
[ "in an aquifer" ]
[ [ 7, 10 ] ]
So to use the water thats stored in an aquifer people must go after it .
TQA:T_0156_1
12
go
true
go
[ "what", "does", "someone", "go", "_", "after", "_", "?" ]
[ "it", "the water thats stored in an aquifer" ]
[ [ 14, 15 ], [ 3, 10 ] ]
So to use the water thats stored in an aquifer people must go after it .
TQA:T_0156_1
12
go
true
go
[ "who", "_", "_", "goes", "_", "after", "something", "?" ]
[ "people" ]
[ [ 10, 11 ] ]
The well pictured in Figure 13.19 is an example of this type of well .
TQA:T_0156_10
2
pictured
true
picture
[ "what", "is", "_", "pictured", "_", "_", "_", "?" ]
[ "The well" ]
[ [ 0, 2 ] ]
The well pictured in Figure 13.19 is an example of this type of well .
TQA:T_0156_10
2
pictured
true
picture
[ "where", "is", "something", "pictured", "_", "_", "_", "?" ]
[ "in Figure 13.19" ]
[ [ 3, 6 ] ]
A hand-cranked pulley is used to lift the bucket of water to the surface .
TQA:T_0156_11
4
used
true
use
[ "what", "is", "something", "used", "_", "_", "to do", "?" ]
[ "to lift the bucket of water to the surface", "lift the bucket of water to the surface" ]
[ [ 5, 14 ], [ 6, 14 ] ]
A hand-cranked pulley is used to lift the bucket of water to the surface .
TQA:T_0156_11
4
used
true
use
[ "what", "is", "_", "used", "_", "_", "to do something", "?" ]
[ "A hand-cranked pulley" ]
[ [ 0, 3 ] ]
A hand-cranked pulley is used to lift the bucket of water to the surface .
TQA:T_0156_11
6
lift
true
lift
[ "how", "is", "something", "lifted", "_", "_", "_", "?" ]
[ "A hand-cranked pulley", "hand-cranked pulley" ]
[ [ 0, 3 ], [ 1, 3 ] ]
A hand-cranked pulley is used to lift the bucket of water to the surface .
TQA:T_0156_11
6
lift
true
lift
[ "what", "is", "_", "lifted", "_", "_", "_", "?" ]
[ "the bucket of water" ]
[ [ 7, 11 ] ]
A hand-cranked pulley is used to lift the bucket of water to the surface .
TQA:T_0156_11
6
lift
true
lift
[ "where", "is", "something", "lifted", "_", "_", "_", "?" ]
[ "to the surface", "the surface" ]
[ [ 11, 14 ], [ 12, 14 ] ]
They dig a well .
TQA:T_0156_3
1
dig
true
dig
[ "what", "does", "someone", "dig", "_", "_", "_", "?" ]
[ "a well" ]
[ [ 2, 4 ] ]
They dig a well .
TQA:T_0156_3
1
dig
true
dig
[ "who", "_", "_", "digs", "_", "_", "_", "?" ]
[ "They" ]
[ [ 0, 1 ] ]
A well is a hole that is dug or drilled through the ground down to an aquifer .
TQA:T_0156_4
7
dug
true
dig
[ "how", "is", "something", "dug", "_", "_", "_", "?" ]
[ "drilled", "through", "down to an aquifer" ]
[ [ 9, 10 ], [ 10, 11 ], [ 13, 17 ] ]
A well is a hole that is dug or drilled through the ground down to an aquifer .
TQA:T_0156_4
7
dug
true
dig
[ "what", "is", "_", "dug", "_", "_", "_", "?" ]
[ "A well", "a hole" ]
[ [ 0, 2 ], [ 3, 5 ] ]
A well is a hole that is dug or drilled through the ground down to an aquifer .
TQA:T_0156_4
7
dug
true
dig
[ "where", "is", "something", "dug", "_", "_", "_", "?" ]
[ "the ground", "through the ground" ]
[ [ 11, 13 ], [ 10, 13 ] ]
A well is a hole that is dug or drilled through the ground down to an aquifer .
TQA:T_0156_4
9
drilled
true
drill
[ "how", "is", "something", "drilled", "_", "_", "_", "?" ]
[ "through the ground" ]
[ [ 10, 13 ] ]
A well is a hole that is dug or drilled through the ground down to an aquifer .
TQA:T_0156_4
9
drilled
true
drill
[ "what", "is", "_", "drilled", "_", "_", "_", "?" ]
[ "A well" ]
[ [ 0, 2 ] ]
A well is a hole that is dug or drilled through the ground down to an aquifer .
TQA:T_0156_4
9
drilled
true
drill
[ "where", "is", "something", "drilled", "_", "_", "_", "?" ]
[ "down to an aquifer" ]
[ [ 13, 17 ] ]
This is illustrated in Figure 13.18 .
TQA:T_0156_5
2
illustrated
true
illustrate
[ "what", "is", "_", "illustrated", "_", "_", "_", "?" ]
[ "This" ]
[ [ 0, 1 ] ]
This is illustrated in Figure 13.18 .
TQA:T_0156_5
2
illustrated
true
illustrate
[ "where", "is", "something", "illustrated", "_", "_", "_", "?" ]
[ "in Figure 13.18" ]
[ [ 3, 6 ] ]
People have depended on water from wells for thousands of years .
TQA:T_0156_6
2
depended
true
depend
[ "what", "does", "someone", "depend", "_", "on", "_", "?" ]
[ "water from wells", "on water" ]
[ [ 4, 7 ], [ 3, 5 ] ]
People have depended on water from wells for thousands of years .
TQA:T_0156_6
2
depended
true
depend
[ "when", "does", "someone", "depend", "_", "on", "something", "?" ]
[ "for thousands of years" ]
[ [ 7, 11 ] ]
People have depended on water from wells for thousands of years .
TQA:T_0156_6
2
depended
true
depend
[ "who", "_", "_", "depends", "_", "on", "something", "?" ]
[ "People" ]
[ [ 0, 1 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
1
bring
true
bring
[ "what", "is", "_", "brought", "_", "_", "_", "?" ]
[ "water" ]
[ [ 2, 3 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
1
bring
true
bring
[ "where", "is", "something", "brought", "_", "_", "_", "?" ]
[ "to the surface" ]
[ [ 3, 6 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
6
takes
true
take
[ "what", "does", "something", "take", "_", "_", "_", "?" ]
[ "energy" ]
[ [ 7, 8 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
6
takes
true
take
[ "what", "_", "_", "takes", "something", "_", "_", "?" ]
[ "water", "To bring water to the surface" ]
[ [ 2, 3 ], [ 0, 6 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
6
takes
true
take
[ "why", "does", "something", "take", "something", "_", "_", "?" ]
[ "because the force of gravity must be overcome" ]
[ [ 8, 16 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
15
overcome
true
overcome
[ "what", "is", "_", "overcome", "_", "_", "_", "?" ]
[ "the force of gravity" ]
[ [ 9, 13 ] ]
To bring water to the surface takes energy because the force of gravity must be overcome .
TQA:T_0156_7
15
overcome
true
overcome
[ "why", "is", "something", "overcome", "_", "_", "_", "?" ]
[ "To bring water to the surface takes energy", "To bring water to the surface" ]
[ [ 0, 8 ], [ 0, 6 ] ]
Today , many wells use electricity to pump water to the surface .
TQA:T_0156_8
4
use
true
use
[ "what", "is", "something", "using", "_", "_", "_", "?" ]
[ "electricity" ]
[ [ 5, 6 ] ]
Today , many wells use electricity to pump water to the surface .
TQA:T_0156_8
4
use
true
use
[ "what", "is", "_", "using", "something", "_", "_", "?" ]
[ "many wells" ]
[ [ 2, 4 ] ]
Today , many wells use electricity to pump water to the surface .
TQA:T_0156_8
4
use
true
use
[ "when", "is", "something", "using", "something", "_", "_", "?" ]
[ "Today" ]
[ [ 0, 1 ] ]
Today , many wells use electricity to pump water to the surface .
TQA:T_0156_8
4
use
true
use
[ "why", "is", "something", "using", "something", "_", "_", "?" ]
[ "to pump water to the surface" ]
[ [ 6, 12 ] ]
Today , many wells use electricity to pump water to the surface .
TQA:T_0156_8
7
pump
true
pump
[ "what", "is", "_", "pumped", "_", "_", "_", "?" ]
[ "water" ]
[ [ 8, 9 ] ]
Today , many wells use electricity to pump water to the surface .
TQA:T_0156_8
7
pump
true
pump
[ "what", "_", "_", "pumps", "something", "_", "_", "?" ]
[ "many wells", "electricity" ]
[ [ 2, 4 ], [ 5, 6 ] ]
However , in some places , water is still brought to the surface the old-fashioned way with human labor .
TQA:T_0156_9
9
brought
true
bring
[ "how", "is", "something", "brought", "_", "_", "somewhere", "?" ]
[ "the old-fashioned way with human labor", "with human labor" ]
[ [ 13, 19 ], [ 16, 19 ] ]
However , in some places , water is still brought to the surface the old-fashioned way with human labor .
TQA:T_0156_9
9
brought
true
bring
[ "what", "is", "_", "brought", "_", "_", "somewhere", "?" ]
[ "water" ]
[ [ 6, 7 ] ]
However , in some places , water is still brought to the surface the old-fashioned way with human labor .
TQA:T_0156_9
9
brought
true
bring
[ "where", "is", "something", "brought", "_", "_", "_", "?" ]
[ "to the surface the old-fashioned way", "to the surface" ]
[ [ 10, 16 ], [ 10, 13 ] ]
When Earth formed 4.6 billion years ago , it would not have been called the water planet .
TQA:T_0157_0
2
formed
true
form
[ "what", "_", "_", "formed", "_", "_", "_", "?" ]
[ "Earth" ]
[ [ 1, 2 ] ]
When Earth formed 4.6 billion years ago , it would not have been called the water planet .
TQA:T_0157_0
2
formed
true
form
[ "when", "did", "something", "form", "_", "_", "_", "?" ]
[ "4.6 billion years ago" ]
[ [ 3, 7 ] ]
When Earth formed 4.6 billion years ago , it would not have been called the water planet .
TQA:T_0157_0
13
called
true
call
[ "what", "would", "_", "called", "something", "_", "_", "?" ]
[ "Earth", "it" ]
[ [ 1, 2 ], [ 8, 9 ] ]
When Earth formed 4.6 billion years ago , it would not have been called the water planet .
TQA:T_0157_0
13
called
true
call
[ "what", "would", "something", "called", "_", "_", "_", "?" ]
[ "it", "the water planet" ]
[ [ 8, 9 ], [ 14, 17 ] ]
When Earth formed 4.6 billion years ago , it would not have been called the water planet .
TQA:T_0157_0
13
called
true
call
[ "when", "would", "something", "called", "something", "_", "_", "?" ]
[ "When", "4.6 billion years ago", "water planet" ]
[ [ 0, 1 ], [ 3, 7 ], [ 15, 17 ] ]
Early Earth was too hot for liquid water to exist .
TQA:T_0157_3
9
exist
true
exist
[ "what", "can't", "_", "exist", "_", "_", "_", "?" ]
[ "liquid water" ]
[ [ 6, 8 ] ]
Early Earth was too hot for liquid water to exist .
TQA:T_0157_3
9
exist
true
exist
[ "why", "can't", "something", "exist", "_", "_", "_", "?" ]
[ "too hot", "Early Earth was too hot" ]
[ [ 3, 5 ], [ 0, 5 ] ]
Earths early years were spent as molten rock and metal .
TQA:T_0157_4
4
spent
true
spend
[ "what", "was", "something", "spent", "_", "as", "_", "?" ]
[ "as molten rock and metal", "molten rock and metal" ]
[ [ 5, 10 ], [ 6, 10 ] ]
Earths early years were spent as molten rock and metal .
TQA:T_0157_4
4
spent
true
spend
[ "what", "was", "_", "spent", "_", "_", "_", "?" ]
[ "Earths early years", "early years" ]
[ [ 0, 3 ], [ 1, 3 ] ]
Over time , Earth cooled .
TQA:T_0158_0
4
cooled
true
cool
[ "how", "did", "something", "cool", "_", "_", "_", "?" ]
[ "Over time" ]
[ [ 0, 2 ] ]
Over time , Earth cooled .
TQA:T_0158_0
4
cooled
true
cool
[ "what", "_", "_", "cooled", "_", "_", "_", "?" ]
[ "Earth" ]
[ [ 3, 4 ] ]
The surface hardened to become solid rock .
TQA:T_0158_1
2
hardened
true
harden
[ "what", "_", "_", "hardened", "_", "_", "_", "?" ]
[ "The surface", "surface" ]
[ [ 0, 2 ], [ 1, 2 ] ]
The surface hardened to become solid rock .
TQA:T_0158_1
2
hardened
true
harden
[ "why", "did", "something", "harden", "_", "_", "_", "?" ]
[ "to become solid rock" ]
[ [ 3, 7 ] ]
The surface hardened to become solid rock .
TQA:T_0158_1
4
become
true
become
[ "what", "is", "_", "becoming", "something", "_", "_", "?" ]
[ "The surface" ]
[ [ 0, 2 ] ]
The surface hardened to become solid rock .
TQA:T_0158_1
4
become
true
become
[ "what", "is", "something", "becoming", "_", "_", "_", "?" ]
[ "solid rock", "solid rock ." ]
[ [ 5, 7 ], [ 5, 8 ] ]
Volcanic eruptions , like the one in Figure 14.1 , brought lava and gases to the surface .
TQA:T_0158_2
10
brought
true
bring
[ "what", "_", "_", "brought", "something", "_", "somewhere", "?" ]
[ "Volcanic eruptions" ]
[ [ 0, 2 ] ]