B1U4

What is the main reason different colors are used for various objects and signs in our daily lives?

• To make things look more appealing.

• To help people distinguish between objects.

• Because colors have strong effects on human perception and behavior.

• To follow traditional design principles.

What is the primary reason yellow is used for school buses and taxis, and red for stop signs?

• Yellow is a primary color, and red is a secondary color.

• Yellow is bright and catches attention, while red indicates danger.

• Yellow signifies happiness, and red signifies anger.

• These colors are cheaper to produce for vehicles and signs.

According to studies, how does the color blue influence people's eating habits?

• It encourages people to eat more by stimulating their appetite.

• It has no noticeable effect on the amount of food consumed.

• It tends to calm people down and reduce the amount they eat.

• It makes food look more appetizing, leading to increased consumption.

What does the English idiom "looks a little green" mean when describing a person?

• The person is feeling envious.

• The person is feeling unwell or sick.

• The person is feeling refreshed and healthy.

• The person is feeling calm and peaceful.