Background: Air pollution is harmful to human beings and other living things. About 22 million people die from air pollution each year. Breathing polluted air increases the risk of developing lung diseases such as asthma and lung cancer. Breathing bad air also increases the chances of dying from other diseases. Children are most likely to be affected by air pollution. That’s because their lungs are still developing and growing. Children also take in more air for their size than adults do. Some air pollutants damage the environment as well as the health of living things. The type of damage depends on the pollutant. Air pollution can also harm the environment.

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had more people develop asthma?
Answer: India

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had fewer people develop asthma?
Answer: Switzerland

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had fewer people develop lung cancer?
Answer: Switzerland

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had more people develop lung cancer?
Answer: India

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had more people with increased chances of dying from other diseases?
Answer: India

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had fewer people with increased chances of dying from other diseases?
Answer: Switzerland

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had fewer children affected by air pollution?
Answer: Switzerland

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had more children affected by air pollution?
Answer: India

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had more environmental damage because of air pollution?
Answer: India

Situation: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted.

Question: Which country had less environmental damage because of air pollution?
Answer: Switzerland

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city caused less acid rain?
Answer: Leaf

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city caused more acid rain?
Answer: Tree

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city caused more air pollution?
Answer: Tree

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city caused less air pollution?
Answer: Leaf

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city caused less harm to human beings?
Answer: Leaf

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city caused more harm to human beings?
Answer: Tree

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city exposed more people to asthma?
Answer: Tree

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city exposed fewer people to asthma?
Answer: Leaf

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city exposed fewer people to lung cancer?
Answer: Leaf

Situation: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment.

Question: Which city exposed more people to lung cancer?
Answer: Tree

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had less environmental damage because of air pollution?
Answer: Australia

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had more environmental damage because of air pollution?
Answer: New Zealand

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had more human beings being harmed by air pollution?
Answer: New Zealand

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had fewer human beings being harmed by air pollution?
Answer: Australia

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had fewer living things being harmed by air pollution?
Answer: Australia

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had more living things being harmed by air pollution?
Answer: New Zealand

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had more children affected by air pollution?
Answer: New Zealand

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had fewer children affected by air pollution?
Answer: Australia

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had fewer people with increased chances of dying from other diseases?
Answer: Australia

Situation: Manny visited 2 countries. First he visited Australia, a country which respected the environment and produced zero air pollution, and New Zealand, a country which based its economy on burning fossil fuels and generated a lot of air pollution.

Question: Which country had more people with increased chances of dying from other diseases?
Answer: New Zealand

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had air that was harmful to human beings?
Answer: Shanghai

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had air that was not harmful to human beings?
Answer: Berna

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had air that was not harmful to other living things?
Answer: Berna

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had air that was harmful to other living things?
Answer: Shanghai

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had people at increased risk of developing asthma?
Answer: Shanghai

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had people at decreased risk of developing asthma?
Answer: Berna

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had people at decreased risk of developing lung cancer?
Answer: Berna

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had people at increased risk of developing lung cancer?
Answer: Shanghai

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had people at increased risk of dying from other diseases?
Answer: Shanghai

Situation: Two sister cities had different environments. Shanghai had big problems with air pollution while Berna took very good care of the surrounding environment and air quality.

Question: Which city had people at decreased risk of dying from other diseases?
Answer: Berna

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had more people with an increased chance of developing lung disease?
Answer: Prague

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had fewer people with an increased chance of developing lung disease?
Answer: Belfast

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had fewer people with an increased chance of developing asthma?
Answer: Belfast

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had more people with an increased chance of developing asthma?
Answer: Prague

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had more people with an increased chance of developing lung cancer?
Answer: Prague

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had fewer people with an increased chance of developing lung cancer?
Answer: Belfast

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had fewer people with an increased chance of dying from other diseases?
Answer: Belfast

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had more people with an increased chance of dying from other diseases?
Answer: Prague

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had more children affected by the pollution?
Answer: Prague

Situation: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy.

Question: Which city had fewer children affected by the pollution?
Answer: Belfast