Background: Gasoline-powered vehicles emit a lot of harmful materials. Nitrogen oxides are formed when atmospheric nitrogen reacts with oxygen at the high temperatures found in a car engine. Carbon monoxide is a by-product of incomplete combustion of hydrocarbons. Evaporated and unused fuel releases volatile hydrocarbons into the atmosphere to help form smog. The presence of a catalytic converter in the exhaust system of the car causes these materials to react and be changed into less harmful products.

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city experienced more smog?
Answer: Berg

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city experienced less smog?
Answer: Hill

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had more vehicles releasing harmful volatile hydrocarbons into the atmosphere?
Answer: Berg

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had fewer vehicles releasing harmful volatile hydrocarbons into the atmosphere?
Answer: Hill

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had more problems with carbon monoxide?
Answer: Berg

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had fewer problems with carbon monoxide?
Answer: Hill

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had more vehicles experiencing incomplete combustion?
Answer: Berg

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had fewer vehicles experiencing incomplete combustion?
Answer: Hill

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had fewer problems with nitrogen oxides?
Answer: Hill

Situation: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers.

Question: Which city had more problems with nitrogen oxides?
Answer: Berg

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island emitted more harmful materials?
Answer: Blue

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island emitted fewer harmful materials?
Answer: Red

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island had more days with smog?
Answer: Blue

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island had fewer days with smog?
Answer: Red

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island had fewer volatile hydrocarbons into the atmosphere?
Answer: Red

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island had more volatile hydrocarbons into the atmosphere?
Answer: Blue

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island released more carbon monoxide into the atmosphere?
Answer: Blue

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island released less carbon monoxide into the atmosphere?
Answer: Red

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island released fewer nitrogen oxides into the atmosphere?
Answer: Red

Situation: Blue island and Red island were two big sister islands situated 100 miles from each other. People on Blue island used gas powered vehicles, while people on Red island used electrical vehicles. The people on Blue island presented more respiratory problems.

Question: Which island released more nitrogen oxides into the atmosphere?
Answer: Blue

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village polluted the air more?
Answer: Bend

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village polluted the air less?
Answer: Mound

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village emitted more harmful materials?
Answer: Bend

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village emitted fewer harmful materials?
Answer: Mound

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village emitted fewer nitrogen oxides?
Answer: Mound

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village emitted more nitrogen oxides?
Answer: Bend

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village emitted more carbon monoxide?
Answer: Bend

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village emitted less carbon monoxide?
Answer: Mound

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village released more volatile hydrocarbons into the atmosphere?
Answer: Bend

Situation: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles.

Question: Which village released fewer volatile hydrocarbons into the atmosphere?
Answer: Mound

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country had their vehicles emitting more harmful materials?
Answer: Nepal

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country had their vehicles emitting fewer harmful materials?
Answer: Brunei

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country contributed to the formation of more nitrogen oxides?
Answer: Nepal

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country contributed to the formation of fewer nitrogen oxides?
Answer: Brunei

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country produced more carbon monoxide?
Answer: Nepal

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country produced less carbon monoxide?
Answer: Brunei

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country experienced more volatile hydrocarbons in the atmosphere?
Answer: Nepal

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country experienced fewer volatile hydrocarbons in the atmosphere?
Answer: Brunei

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country experienced more smog?
Answer: Nepal

Situation: After decades of debate, Brunei decided to adopt electrical vehicles and use them extensively, ultimately phasing out gasoline powered vehicles. Their neighbor Nepal decided to continue using gasoline-powered vehicles extensively.

Question: Which country experienced less smog?
Answer: Brunei

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town emitted more harmful materials?
Answer: Hill

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town emitted fewer harmful materials?
Answer: Valley

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town emitted fewer nitrogen oxides?
Answer: Valley

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town emitted more nitrogen oxides?
Answer: Hill

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town emitted more carbon monoxide?
Answer: Hill

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town emitted less carbon monoxide?
Answer: Valley

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town had more evaporated and unused fuel?
Answer: Hill

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town had less evaporated and unused fuel?
Answer: Valley

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town had fewer volatile hydrocarbons in the atmosphere?
Answer: Valley

Situation: Hill town was full of gasoline powered vehicles, while Valley town 50 miles away, banned all gas powered vehicles and allows only electrical vehicles or horse-and-buggies.

Question: Which town had more volatile hydrocarbons in the atmosphere?
Answer: Hill