Which of these industries is a small-scale industry?

1. petrochemical
2. machine parts
3. iron and steel
4. handloom

Which of these industries is not classified on the basis of ownership?

1. cooperative
2. private
3. public
4. agro-based

Which of these countries has the largest automobile industry in the world?

1. South Korea
2. Germany
3. the USA
4. Japan

Which of these wastes from industries causes soil pollution?

1. smoke
2. carbon monoxide
3. fly ash
4. oil spill