Many different airlines have counters in the terminal building. The country’s airline is not the only one that serves the airport. The country wants people from all over the world to come as tourists. Yet it can’t afford to provide services everywhere. No one country or company does this. Therefore, many different airlines provide service to and from the many different places people need or want to travel. In addition, places visited by many travelers need to be served by more than one airline so that the passengers can have a wider choice of flights. Because there is so much competition among airlines for passengers that there are many different kinds of service available as well as different types and sizes of aircraft. To avoid air traffic problems, all airline routes are controlled by local government or by international regulations.

Student critics have, on occasion, resorted to violent means against the trend.

Critics are greater in the number than people enjoying the new way of life.

Critics are concerned solely with the present mad not the future.

Student critics are greater in number than critics in other fields.

Half a year.

Half a circle.

A bicycle.

Quarter of a circle.

An Indian boy ran swiftly from a village in Mexico. In his hand he carried a basket of fish. Only a few moments before, the fish had been pulled from the cold water of the lake. Farther on, another runner was waiting to take the basket from the tired boy and to race on. And so from one swift runner to another, fresh fish were rushed from the lake to the dinner table of Montezuma, ruler of the Aztecs. Speed is important in transporting fish and many other fresh foods. Foods that spoil easily must reach the market and the dinner table as quickly as possible. But now planes, trucks, trains, and ships have replaced runners. Planes are the fastest way to transport food. They are especially useful in carrying food to people and animals that could not be reached otherwise. Suppose there were a flood or an earthquake and the people could not be reached by trains or trucks. Unless packages of food could be dropped from planes, the people might starve. Trucks have many advantages. A truck can start as soon as it is loaded, and it can deliver goods directly to the market. Many modern trucks have their own refrigeration system. Today the tank truck that carries milk is a familiar sight on many country roads. The modern dairy farmer makes use of tank tracks that keep the milk fresh until it is delivered to stores and homes. Trains cannot always carry food as quickly as trucks. Many freight cars must be loaded before a train can start on a trip. And when the freight train arrives in the city, the food must be unloaded from the cars onto trucks to be taken to the market. All of this takes time. When railroad companies wanted to move perishable foods faster, they developed a plan that run on the rails. Some perishable foods can be transported by refrigerator ships. Bananas can be shipped in this way. They are loaded in the refrigerated hold of the ship while they are still green during the trip. As the green bananas are loaded, a man watches carefully for signs of yellow on them. If even one ripe banana is loaded, a whole shipload of fruit might be spoiled. But not all food needs to be moved as quickly or as carefully as perishable fresh food. Grains can make a slower trip without danger of spoiling. Transportation by water is usually a cheap way of sending such foods. Trucks, trains, planes, and refrigerator ships are modern ways of transporting food. But a great deal of food is still carried on the heads of women and on the backs of animals. Over the desert sands, camels carry loads of salt, dates, and cheese.

beyond

in

of

under

Student critics have, on occasion, resorted to violent means against the trend.

Critics are greater in the number than people enjoying the new way of life.

Critics are concerned solely with the present mad not the future.

Student critics are greater in number than critics in other fields.

Half a year.

Half a circle.

A bicycle.

Quarter of a circle.

An Indian boy ran swiftly from a village in Mexico. In his hand he carried a basket of fish. Only a few moments before, the fish had been pulled from the cold water of the lake. Farther on, another runner was waiting to take the basket from the tired boy and to race on. And so from one swift runner to another, fresh fish were rushed from the lake to the dinner table of Montezuma, ruler of the Aztecs. Speed is important in transporting fish and many other fresh foods. Foods that spoil easily must reach the market and the dinner table as quickly as possible. But now planes, trucks, trains, and ships have replaced runners. Planes are the fastest way to transport food. They are especially useful in carrying food to people and animals that could not be reached otherwise. Suppose there were a flood or an earthquake and the people could not be reached by trains or trucks. Unless packages of food could be dropped from planes, the people might starve. Trucks have many advantages. A truck can start as soon as it is loaded, and it can deliver goods directly to the market. Many modern trucks have their own refrigeration system. Today the tank truck that carries milk is a familiar sight on many country roads. The modern dairy farmer makes use of tank tracks that keep the milk fresh until it is delivered to stores and homes. Trains cannot always carry food as quickly as trucks. Many freight cars must be loaded before a train can start on a trip. And when the freight train arrives in the city, the food must be unloaded from the cars onto trucks to be taken to the market. All of this takes time. When railroad companies wanted to move perishable foods faster, they developed a plan that run on the rails. Some perishable foods can be transported by refrigerator ships. Bananas can be shipped in this way. They are loaded in the refrigerated hold of the ship while they are still green during the trip. As the green bananas are loaded, a man watches carefully for signs of yellow on them. If even one ripe banana is loaded, a whole shipload of fruit might be spoiled. But not all food needs to be moved as quickly or as carefully as perishable fresh food. Grains can make a slower trip without danger of spoiling. Transportation by water is usually a cheap way of sending such foods. Trucks, trains, planes, and refrigerator ships are modern ways of transporting food. But a great deal of food is still carried on the heads of women and on the backs of animals. Over the desert sands, camels carry loads of salt, dates, and cheese.

beyond

in

of

under