Read the following article and answer the question. Article: About ten men in every hundred suffer from colour blindness in some way. Women are luckier. Only about one in two hundred is affected in this matter. So some people say it is safer to be driven by women. There are different forms of colour blindness. In some cases a man may not be able to see deep red. He may think that red, orange and yellow are all shades of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green--a strange world indeed. Colour blindness in humans is a strange thing to explain. In our eyes there are millions of very small things called "cones". These help us to see in a bright light and to tell differences between colours. There are also millions of "rods", but these are used for seeing when it is nearly dark. They show us shapes but no colour. Some insects have favourite colours. Mosquitoes like blue but do not like yellow. A red light will not attract insects, but a blue lamp will. In a similar way humans also have favourite colours. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colours by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible colours around us. Question: This passage is mainly about _ Answer:
OPTIONS:
- colour and its surprising effects
- danger caused by colour blindness
- colour blindness
- the invisible colours around us

Answer: colour blindness

Read the following article and answer the question. Article: Many scientists find that colours can change people's feelings. It's very interesting. Some colours can make people feel relaxed,and some colours can make people feel nervous. Now,this kind of knowledge is being used in many places. For example, school walls are always painted green because green makes students feel relaxed. It is also good for the students' eyes. Some books are also green or light blue for the same reason. Restaurant owners not only have to know how to make food,but also have to know how to make money. Here are some things they've learned from scientific studies. The colour red makes people hungry. Many fast food restaurants have red furniture or walls. Soft colours like pink and light blue make people feel relaxed,so they spend more time eating. Loud music may be nice at first,but it soon makes people want to leave. Hard seats also make customers want to eat quickly and leave. Many restaurants,especially fast food restaurants,use this knowledge to make customers eat faster. Question: How does the colour green make the students feel? Answer:
OPTIONS:
- Hungry.
- Nervous.
- Angry.
- Relaxed.

Answer: Relaxed.

Read the following article and answer the question. Article: On April 14th at 7:49 am, the town of Jyekundo in Kham, was struck by a 6.9 magnitude earthquake. My family and I were in our 3rd floor apartment building when the earthquake hit. There was a smaller earthquake (around 4.7) that happened around 4 am and neither my wife nor I could get back to sleep. When the big earthquake hit, my wife was using her computer while our younger son Norbu (18 months old) was playing in the living room. Tsering, our older son who is 3 years old, was still asleep in the back bedroom of the 3 bedroom apartment we were living in. Norbu flew across the room when the earthquake hit. My wife was also thrown to the ground. Everything in our apartment began to be tossed around, breaking when it hit the walls or floor. I ran to the back bedroom and grabbed Tsering as my wife grabbed Norbu off the floor. Together, we ran to the door. I stopped long enough to grab my shoes, coat and a bit of money. I opened the door and one of our neighbors helped us carry Tsering down to the ground floor. I was the only one of my family who managed to get shoes. After the earthquake, we were able to see that this was a major earthquake. We began to hear people crying for help, badly injured people crawling to the road and people weeping for loved ones who had died. Question: What did NOT people do after the earthquake? Answer:
OPTIONS:
- People were able to have a rest.
- People cried for help.
- Injured people were crawling to the road.
- People were weeping for dead loved ones.

Answer:
People were able to have a rest.