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Thats why people were alarmed in the 1980s to learn that there was a hole in the ozone layer .
TQA:T_0474_2
4
alarmed
true
alarm
[ "why", "was", "someone", "alarmed", "_", "_", "_", "?" ]
[ "to learn that there was a hole in the ozone layer", "learn that there was a hole in the ozone layer" ]
[ [ 8, 19 ], [ 9, 19 ] ]
Thats why people were alarmed in the 1980s to learn that there was a hole in the ozone layer .
TQA:T_0474_2
9
learn
true
learn
[ "what", "did", "someone", "learn", "_", "_", "_", "?" ]
[ "that there was a hole in the ozone layer" ]
[ [ 10, 19 ] ]
Thats why people were alarmed in the 1980s to learn that there was a hole in the ozone layer .
TQA:T_0474_2
9
learn
true
learn
[ "when", "did", "someone", "learn", "something", "_", "_", "?" ]
[ "1980s", "in the 1980s" ]
[ [ 7, 8 ], [ 5, 8 ] ]
Thats why people were alarmed in the 1980s to learn that there was a hole in the ozone layer .
TQA:T_0474_2
9
learn
true
learn
[ "who", "_", "_", "learned", "something", "_", "_", "?" ]
[ "people" ]
[ [ 2, 3 ] ]
Whats destroying the ozone layer ?
TQA:T_0475_0
1
destroying
true
destroy
[ "what", "is", "_", "destroyed", "_", "_", "_", "?" ]
[ "the ozone layer" ]
[ [ 2, 5 ] ]
One CFC molecule can break down as many as 100,000 ozone molecules in this way !
TQA:T_0475_11
4
break
true
break
[ "how much", "can", "something", "break", "something", "down", "_", "?" ]
[ "in this way !", "as many as 100,000" ]
[ [ 12, 16 ], [ 6, 10 ] ]
One CFC molecule can break down as many as 100,000 ozone molecules in this way !
TQA:T_0475_11
4
break
true
break
[ "what", "can", "_", "break", "something", "down", "_", "?" ]
[ "One CFC molecule", "CFC molecule" ]
[ [ 0, 3 ], [ 1, 3 ] ]
One CFC molecule can break down as many as 100,000 ozone molecules in this way !
TQA:T_0475_11
4
break
true
break
[ "what", "can", "something", "break", "_", "down", "_", "?" ]
[ "100,000 ozone molecules", "ozone molecules" ]
[ [ 9, 12 ], [ 10, 12 ] ]
These forms of oxygen do not protect the planet from ultraviolet radiation .
TQA:T_0475_12
6
protect
true
protect
[ "what", "doesn't", "_", "protect", "something", "_", "_", "?" ]
[ "These forms of oxygen" ]
[ [ 0, 4 ] ]
These forms of oxygen do not protect the planet from ultraviolet radiation .
TQA:T_0475_12
6
protect
true
protect
[ "what", "doesn't", "something", "protect", "_", "_", "_", "?" ]
[ "the planet" ]
[ [ 7, 9 ] ]
These are human-made chemicals that contain the element chlorine -LRB- Cl -RRB- .
TQA:T_0475_2
5
contain
true
contain
[ "what", "_", "_", "contains", "something", "_", "_", "?" ]
[ "These", "human-made chemicals" ]
[ [ 0, 1 ], [ 2, 4 ] ]
These are human-made chemicals that contain the element chlorine -LRB- Cl -RRB- .
TQA:T_0475_2
5
contain
true
contain
[ "what", "does", "something", "contain", "_", "_", "_", "?" ]
[ "the element chlorine -LRB- Cl -RRB-", "the element chlorine" ]
[ [ 6, 12 ], [ 6, 9 ] ]
In the past , CFCs were widely used in spray cans , refrigerators , and many other products .
TQA:T_0475_3
7
used
true
use
[ "how", "was", "something", "used", "_", "_", "_", "?" ]
[ "widely" ]
[ [ 6, 7 ] ]
In the past , CFCs were widely used in spray cans , refrigerators , and many other products .
TQA:T_0475_3
7
used
true
use
[ "what", "was", "_", "used", "_", "_", "_", "?" ]
[ "CFCs" ]
[ [ 4, 5 ] ]
In the past , CFCs were widely used in spray cans , refrigerators , and many other products .
TQA:T_0475_3
7
used
true
use
[ "when", "was", "something", "used", "_", "_", "_", "?" ]
[ "In the past" ]
[ [ 0, 3 ] ]
In the past , CFCs were widely used in spray cans , refrigerators , and many other products .
TQA:T_0475_3
7
used
true
use
[ "where", "was", "something", "used", "_", "_", "_", "?" ]
[ "in spray cans , refrigerators , and many other products" ]
[ [ 8, 18 ] ]
CFCs are stable compounds that can remain in the atmosphere for hundreds of years .
TQA:T_0475_4
6
remain
true
remain
[ "what", "can", "_", "remain", "_", "_", "_", "?" ]
[ "CFCs" ]
[ [ 0, 1 ] ]
CFCs are stable compounds that can remain in the atmosphere for hundreds of years .
TQA:T_0475_4
6
remain
true
remain
[ "when", "can", "something", "remain", "_", "_", "somewhere", "?" ]
[ "for hundreds of years" ]
[ [ 10, 14 ] ]
CFCs are stable compounds that can remain in the atmosphere for hundreds of years .
TQA:T_0475_4
6
remain
true
remain
[ "where", "can", "something", "remain", "_", "_", "_", "?" ]
[ "in the atmosphere" ]
[ [ 7, 10 ] ]
Once CFCs are in the air , they float up into the stratosphere .
TQA:T_0475_5
8
float
true
float
[ "what", "_", "_", "floats", "_", "_", "somewhere", "?" ]
[ "CFCs", "they" ]
[ [ 1, 2 ], [ 7, 8 ] ]
Once CFCs are in the air , they float up into the stratosphere .
TQA:T_0475_5
8
float
true
float
[ "where", "does", "something", "float", "_", "_", "_", "?" ]
[ "the stratosphere", "up into the stratosphere", "into the stratosphere" ]
[ [ 11, 13 ], [ 9, 13 ], [ 10, 13 ] ]
What happens next is shown in Figure 22.12 .
TQA:T_0475_6
1
happens
true
happen
[ "where", "does", "something", "happen", "_", "_", "_", "?" ]
[ "Figure 22.12", "in Figure 22.12" ]
[ [ 6, 8 ], [ 5, 8 ] ]
What happens next is shown in Figure 22.12 .
TQA:T_0475_6
4
shown
true
show
[ "what", "is", "_", "shown", "_", "_", "somewhere", "?" ]
[ "What happens next" ]
[ [ 0, 3 ] ]
What happens next is shown in Figure 22.12 .
TQA:T_0475_6
4
shown
true
show
[ "where", "is", "something", "shown", "_", "_", "_", "?" ]
[ "in Figure 22.12" ]
[ [ 5, 8 ] ]
This releases their chlorine atoms -LRB- Cl -RRB- .
TQA:T_0475_8
1
releases
true
release
[ "what", "does", "something", "release", "_", "_", "_", "?" ]
[ "their chlorine atoms", "their chlorine atoms -LRB- Cl -RRB-" ]
[ [ 2, 5 ], [ 2, 8 ] ]
This releases their chlorine atoms -LRB- Cl -RRB- .
TQA:T_0475_8
1
releases
true
release
[ "what", "_", "_", "releases", "something", "_", "_", "?" ]
[ "This" ]
[ [ 0, 1 ] ]
The free chlorine atoms may then combine with oxygen atoms in ozone .
TQA:T_0475_9
6
combine
true
combine
[ "what", "might", "_", "combine", "_", "with", "something", "?" ]
[ "The free chlorine atoms", "free chlorine atoms" ]
[ [ 0, 4 ], [ 1, 4 ] ]
The free chlorine atoms may then combine with oxygen atoms in ozone .
TQA:T_0475_9
6
combine
true
combine
[ "what", "might", "something", "combine", "_", "with", "_", "?" ]
[ "oxygen atoms in ozone" ]
[ [ 8, 12 ] ]
Most ozone loss it taking place over the South Pole and Antarctica .
TQA:T_0476_0
4
taking
true
take
[ "what", "is", "something", "taking", "_", "over", "something", "?" ]
[ "over the South Pole and Antarctica", "place" ]
[ [ 6, 12 ], [ 5, 6 ] ]
Most ozone loss it taking place over the South Pole and Antarctica .
TQA:T_0476_0
4
taking
true
take
[ "what", "is", "something", "taking", "something", "over", "_", "?" ]
[ "Antarctica", "the South Pole", "the South Pole and Antarctica", "place" ]
[ [ 11, 12 ], [ 7, 10 ], [ 7, 12 ], [ 5, 6 ] ]
Most ozone loss it taking place over the South Pole and Antarctica .
TQA:T_0476_0
4
taking
true
take
[ "what", "is", "_", "taking", "something", "over", "something", "?" ]
[ "Most ozone loss" ]
[ [ 0, 3 ] ]
The hole forms during the early part spring in the Southern Hemisphere and then grows northward .
TQA:T_0476_3
14
grows
true
grow
[ "what", "is", "_", "growing", "_", "_", "_", "?" ]
[ "The hole", "hole" ]
[ [ 0, 2 ], [ 1, 2 ] ]
The hole forms during the early part spring in the Southern Hemisphere and then grows northward .
TQA:T_0476_3
14
grows
true
grow
[ "where", "is", "something", "growing", "_", "_", "_", "?" ]
[ "northward", "Southern Hemisphere", "in the Southern Hemisphere and then grows northward ." ]
[ [ 15, 16 ], [ 10, 12 ], [ 8, 17 ] ]
You can see the hole in Figure 22.13 .
TQA:T_0476_4
2
see
true
see
[ "what", "is", "_", "seen", "_", "_", "_", "?" ]
[ "the hole" ]
[ [ 3, 5 ] ]
You can see the hole in Figure 22.13 .
TQA:T_0476_4
2
see
true
see
[ "where", "is", "something", "seen", "_", "_", "_", "?" ]
[ "in Figure 22.13 .", "Figure 22.13", "in Figure 22.13" ]
[ [ 5, 9 ], [ 6, 8 ], [ 5, 8 ] ]
You can see the hole in Figure 22.13 .
TQA:T_0476_4
2
see
true
see
[ "who", "can", "_", "see", "something", "_", "_", "?" ]
[ "You" ]
[ [ 0, 1 ] ]
With less ozone in the stratosphere , more UV rays reach the ground .
TQA:T_0477_0
10
reach
true
reach
[ "what", "does", "something", "reach", "_", "_", "_", "?" ]
[ "the ground", "ground" ]
[ [ 11, 13 ], [ 12, 13 ] ]
With less ozone in the stratosphere , more UV rays reach the ground .
TQA:T_0477_0
10
reach
true
reach
[ "what", "_", "_", "reaches", "something", "_", "_", "?" ]
[ "more UV rays", "UV rays" ]
[ [ 7, 10 ], [ 8, 10 ] ]
With less ozone in the stratosphere , more UV rays reach the ground .
TQA:T_0477_0
10
reach
true
reach
[ "why", "does", "something", "reach", "something", "_", "_", "?" ]
[ "less ozone in the stratosphere", "With less ozone in the stratosphere" ]
[ [ 1, 6 ], [ 0, 6 ] ]
More UV rays increase skin cancer rates .
TQA:T_0477_1
3
increase
true
increase
[ "what", "does", "something", "increase", "_", "_", "_", "?" ]
[ "skin cancer rates" ]
[ [ 4, 7 ] ]
More UV rays increase skin cancer rates .
TQA:T_0477_1
3
increase
true
increase
[ "what", "_", "_", "increases", "something", "_", "_", "?" ]
[ "More UV rays", "UV rays" ]
[ [ 0, 3 ], [ 1, 3 ] ]
Just a 1 percent loss of ozone causes a 5 percent increase in skin cancer .
TQA:T_0477_2
7
causes
true
cause
[ "how much", "does", "something", "cause", "something", "_", "_", "?" ]
[ "1 percent", "Just a 1 percent" ]
[ [ 2, 4 ], [ 0, 4 ] ]
Just a 1 percent loss of ozone causes a 5 percent increase in skin cancer .
TQA:T_0477_2
7
causes
true
cause
[ "how much", "is", "something", "caused", "_", "_", "_", "?" ]
[ "5 percent", "a 5 percent" ]
[ [ 9, 11 ], [ 8, 11 ] ]
Just a 1 percent loss of ozone causes a 5 percent increase in skin cancer .
TQA:T_0477_2
7
causes
true
cause
[ "what", "_", "_", "causes", "something", "_", "_", "?" ]
[ "a 1 percent loss of ozone", "loss of ozone" ]
[ [ 1, 7 ], [ 4, 7 ] ]
Just a 1 percent loss of ozone causes a 5 percent increase in skin cancer .
TQA:T_0477_2
7
causes
true
cause
[ "what", "does", "something", "cause", "_", "_", "_", "?" ]
[ "a 5 percent increase in skin cancer", "increase in skin cancer" ]
[ [ 8, 15 ], [ 11, 15 ] ]
More UV rays also harm plants and phytoplankton .
TQA:T_0477_3
4
harm
true
harm
[ "what", "does", "something", "harm", "_", "_", "_", "?" ]
[ "plants and phytoplankton" ]
[ [ 5, 8 ] ]
More UV rays also harm plants and phytoplankton .
TQA:T_0477_3
4
harm
true
harm
[ "what", "_", "_", "harms", "something", "_", "_", "?" ]
[ "More UV rays", "UV rays" ]
[ [ 0, 3 ], [ 1, 3 ] ]
As a result , they produce less food .
TQA:T_0477_4
5
produce
true
produce
[ "what", "does", "something", "produce", "_", "_", "_", "?" ]
[ "less food", "less food ." ]
[ [ 6, 8 ], [ 6, 9 ] ]
As a result , they produce less food .
TQA:T_0477_4
5
produce
true
produce
[ "what", "_", "_", "produces", "something", "_", "_", "?" ]
[ "they" ]
[ [ 4, 5 ] ]
This may affect entire ecosystems .
TQA:T_0477_5
2
affect
true
affect
[ "what", "might", "_", "affect", "something", "_", "_", "?" ]
[ "This" ]
[ [ 0, 1 ] ]
This may affect entire ecosystems .
TQA:T_0477_5
2
affect
true
affect
[ "what", "might", "something", "affect", "_", "_", "_", "?" ]
[ "entire ecosystems" ]
[ [ 3, 5 ] ]
There are two basic types of strategies for reducing pollution from fossil fuels : 1 .
TQA:T_0478_0
8
reducing
true
reduce
[ "how", "is", "something", "reduced", "_", "_", "_", "?" ]
[ "two basic types of strategies" ]
[ [ 2, 7 ] ]
There are two basic types of strategies for reducing pollution from fossil fuels : 1 .
TQA:T_0478_0
8
reducing
true
reduce
[ "what", "is", "_", "reduced", "_", "_", "_", "?" ]
[ "pollution", "pollution from fossil fuels" ]
[ [ 9, 10 ], [ 9, 13 ] ]
Use less fossil fuel to begin with .
TQA:T_0478_1
5
begin
true
begin
[ "what", "should", "_", "begin", "_", "_", "_", "?" ]
[ "Use less fossil fuel" ]
[ [ 0, 4 ] ]
When fossil fuels must be used , prevent the pollution from entering the air .
TQA:T_0478_3
5
used
true
use
[ "what", "was", "_", "used", "_", "_", "_", "?" ]
[ "fossil fuels" ]
[ [ 1, 3 ] ]
When fossil fuels must be used , prevent the pollution from entering the air .
TQA:T_0478_3
7
prevent
true
prevent
[ "what", "is", "_", "prevented", "_", "_", "_", "?" ]
[ "pollution", "the pollution from entering the air", "the pollution" ]
[ [ 9, 10 ], [ 8, 14 ], [ 8, 10 ] ]
When fossil fuels must be used , prevent the pollution from entering the air .
TQA:T_0478_3
7
prevent
true
prevent
[ "where", "is", "something", "prevented", "_", "_", "_", "?" ]
[ "air", "the air" ]
[ [ 13, 14 ], [ 12, 14 ] ]
When fossil fuels must be used , prevent the pollution from entering the air .
TQA:T_0478_3
11
entering
true
enter
[ "what", "might", "_", "entering", "_", "_", "somewhere", "?" ]
[ "pollution", "the pollution" ]
[ [ 9, 10 ], [ 8, 10 ] ]
When fossil fuels must be used , prevent the pollution from entering the air .
TQA:T_0478_3
11
entering
true
enter
[ "when", "might", "something", "entering", "_", "_", "somewhere", "?" ]
[ "fossil fuels must be used", "When fossil fuels must be used" ]
[ [ 1, 6 ], [ 0, 6 ] ]
When fossil fuels must be used , prevent the pollution from entering the air .
TQA:T_0478_3
11
entering
true
enter
[ "where", "might", "something", "entering", "_", "_", "somewhere", "?" ]
[ "air", "the air" ]
[ [ 13, 14 ], [ 12, 14 ] ]
We can reduce our use of fossil fuels in several ways : Conserve fossil fuels .
TQA:T_0479_0
2
reduce
true
reduce
[ "how", "can", "someone", "reduce", "something", "_", "_", "?" ]
[ "in several ways" ]
[ [ 8, 11 ] ]
We can reduce our use of fossil fuels in several ways : Conserve fossil fuels .
TQA:T_0479_0
2
reduce
true
reduce
[ "what", "can", "someone", "reduce", "_", "_", "_", "?" ]
[ "our use of fossil fuels" ]
[ [ 3, 8 ] ]
We can reduce our use of fossil fuels in several ways : Conserve fossil fuels .
TQA:T_0479_0
2
reduce
true
reduce
[ "who", "can", "_", "reduce", "something", "_", "_", "?" ]
[ "We", "We can" ]
[ [ 0, 1 ], [ 0, 2 ] ]
We can reduce our use of fossil fuels in several ways : Conserve fossil fuels .
TQA:T_0479_0
12
Conserve
true
conserve
[ "what", "is", "_", "conserved", "_", "_", "_", "?" ]
[ "fossil fuels" ]
[ [ 13, 15 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
3
turning
true
turn
[ "what", "is", "_", "turned", "_", "_", "_", "?" ]
[ "lights" ]
[ [ 5, 6 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
3
turning
true
turn
[ "when", "is", "something", "turned", "_", "_", "_", "?" ]
[ "when we arent using them saves electricity", "when we arent using them" ]
[ [ 6, 13 ], [ 6, 11 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
9
using
true
use
[ "what", "is", "someone", "using", "_", "_", "_", "?" ]
[ "them", "lights" ]
[ [ 10, 11 ], [ 5, 6 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
9
using
true
use
[ "who", "is", "_", "using", "something", "_", "_", "?" ]
[ "we" ]
[ [ 7, 8 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
11
saves
true
save
[ "what", "does", "something", "save", "_", "_", "_", "?" ]
[ "electricity" ]
[ [ 12, 13 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
11
saves
true
save
[ "what", "_", "_", "saves", "something", "_", "_", "?" ]
[ "turning out lights when we arent using them", "turning out lights" ]
[ [ 3, 11 ], [ 3, 6 ] ]
For example , turning out lights when we arent using them saves electricity .
TQA:T_0479_1
11
saves
true
save
[ "when", "does", "something", "save", "something", "_", "_", "?" ]
[ "when we arent using them" ]
[ [ 6, 11 ] ]
As a result , they produce just 10 percent of the air pollution produced by cars that run only on gas .
TQA:T_0479_10
5
produce
true
produce
[ "how much", "does", "something", "produce", "something", "_", "_", "?" ]
[ "10 percent", "just 10 percent" ]
[ [ 7, 9 ], [ 6, 9 ] ]
As a result , they produce just 10 percent of the air pollution produced by cars that run only on gas .
TQA:T_0479_10
5
produce
true
produce
[ "what", "does", "something", "produce", "_", "_", "_", "?" ]
[ "air pollution", "the air pollution produced by cars that run only on gas", "air pollution produced by cars that run only on gas" ]
[ [ 11, 13 ], [ 10, 21 ], [ 11, 21 ] ]
As a result , they produce just 10 percent of the air pollution produced by cars that run only on gas .
TQA:T_0479_10
5
produce
true
produce
[ "what", "_", "_", "produces", "something", "_", "_", "?" ]
[ "they" ]
[ [ 4, 5 ] ]
As a result , they produce just 10 percent of the air pollution produced by cars that run only on gas .
TQA:T_0479_10
13
produced
true
produce
[ "what", "is", "_", "produced", "_", "_", "_", "?" ]
[ "air pollution" ]
[ [ 11, 13 ] ]
As a result , they produce just 10 percent of the air pollution produced by cars that run only on gas .
TQA:T_0479_10
17
run
true
run
[ "how", "does", "something", "run", "_", "_", "_", "?" ]
[ "only on gas", "on gas" ]
[ [ 18, 21 ], [ 19, 21 ] ]
As a result , they produce just 10 percent of the air pollution produced by cars that run only on gas .
TQA:T_0479_10
17
run
true
run
[ "what", "_", "_", "runs", "_", "_", "_", "?" ]
[ "cars" ]
[ [ 15, 16 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
2
run
true
run
[ "what", "does", "something", "run", "_", "on", "_", "?" ]
[ "hydrogen", "on hydrogen" ]
[ [ 4, 5 ], [ 3, 5 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
2
run
true
run
[ "what", "_", "_", "runs", "_", "on", "something", "?" ]
[ "Cars" ]
[ [ 0, 1 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
2
run
true
run
[ "why", "does", "something", "run", "_", "on", "something", "?" ]
[ "produce no pollution at all" ]
[ [ 6, 11 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
6
produce
true
produce
[ "what", "does", "something", "produce", "_", "_", "_", "?" ]
[ "no pollution", "no pollution at all" ]
[ [ 7, 9 ], [ 7, 11 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
6
produce
true
produce
[ "what", "_", "_", "produces", "something", "_", "_", "?" ]
[ "Cars", "Cars that run on hydrogen" ]
[ [ 0, 1 ], [ 0, 5 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
14
developed
true
develop
[ "what", "has", "_", "developed", "_", "_", "_", "?" ]
[ "Cars that run on hydrogen and produce no pollution", "Cars that run on hydrogen and produce no pollution at all" ]
[ [ 0, 9 ], [ 0, 11 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
16
see
true
see
[ "what", "can", "someone", "see", "_", "_", "_", "?" ]
[ "Cars that run on hydrogen and produce no pollution", "Cars that run on hydrogen and produce no pollution at all", "Cars that run on hydrogen" ]
[ [ 0, 9 ], [ 0, 11 ], [ 0, 5 ] ]
Cars that run on hydrogen and produce no pollution at all have also been developed -LRB- see Figure 22.14 -RRB- .
TQA:T_0479_11
16
see
true
see
[ "where", "can", "someone", "see", "something", "_", "_", "?" ]
[ "Figure 22.14" ]
[ [ 17, 19 ] ]
A lot of the electricity we use comes from coal-burning power plants .
TQA:T_0479_3
6
use
true
use
[ "what", "does", "someone", "use", "_", "_", "_", "?" ]
[ "electricity", "A lot of the electricity" ]
[ [ 4, 5 ], [ 0, 5 ] ]
A lot of the electricity we use comes from coal-burning power plants .
TQA:T_0479_3
6
use
true
use
[ "who", "_", "_", "uses", "something", "_", "_", "?" ]
[ "we" ]
[ [ 5, 6 ] ]
A lot of the electricity we use comes from coal-burning power plants .
TQA:T_0479_3
7
comes
true
come
[ "how much", "does", "something", "come", "_", "from", "something", "?" ]
[ "A lot" ]
[ [ 0, 2 ] ]
A lot of the electricity we use comes from coal-burning power plants .
TQA:T_0479_3
7
comes
true
come
[ "what", "_", "_", "comes", "_", "from", "something", "?" ]
[ "electricity", "the electricity" ]
[ [ 4, 5 ], [ 3, 5 ] ]
A lot of the electricity we use comes from coal-burning power plants .
TQA:T_0479_3
7
comes
true
come
[ "what", "does", "something", "come", "_", "from", "_", "?" ]
[ "plants", "coal-burning power plants" ]
[ [ 11, 12 ], [ 9, 12 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
3
driving
true
drive
[ "what", "is", "_", "driven", "_", "_", "_", "?" ]
[ "a fuel-efficient car" ]
[ [ 4, 7 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
7
lets
true
let
[ "what", "is", "someone", "let", "_", "_", "do", "?" ]
[ "go farther on each gallon of gas", "go farther" ]
[ [ 9, 16 ], [ 9, 11 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
7
lets
true
let
[ "what", "_", "_", "lets", "someone", "_", "do something", "?" ]
[ "driving a fuel-efficient car", "a fuel-efficient car", "fuel-efficient car" ]
[ [ 3, 7 ], [ 4, 7 ], [ 5, 7 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
7
lets
true
let
[ "who", "can", "_", "let", "_", "_", "do something", "?" ]
[ "you" ]
[ [ 8, 9 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
9
go
true
go
[ "how", "does", "something", "go", "_", "_", "_", "?" ]
[ "gas", "farther" ]
[ [ 15, 16 ], [ 10, 11 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
9
go
true
go
[ "what", "_", "_", "goes", "_", "_", "_", "?" ]
[ "car", "you" ]
[ [ 6, 7 ], [ 8, 9 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
9
go
true
go
[ "where", "does", "something", "go", "_", "_", "_", "?" ]
[ "farther" ]
[ [ 10, 11 ] ]
For example , driving a fuel-efficient car lets you go farther on each gallon of gas .
TQA:T_0479_5
9
go
true
go
[ "why", "does", "something", "go", "_", "_", "_", "?" ]
[ "driving a fuel-efficient car", "fuel-efficient" ]
[ [ 3, 7 ], [ 5, 6 ] ]
This can add up to a big savings in fossil fuel use .
TQA:T_0479_6
2
add
true
add
[ "what", "can", "_", "add", "_", "up", "_", "?" ]
[ "This" ]
[ [ 0, 1 ] ]
This can add up to a big savings in fossil fuel use .
TQA:T_0479_6
2
add
true
add
[ "what", "does", "something", "add", "_", "up to", "_", "?" ]
[ "big savings", "a big savings in fossil fuel use" ]
[ [ 6, 8 ], [ 5, 12 ] ]