TOEFL Skill 3 pages 262-263

1 According to the passage, what happens during an ice age?

• Rock strata are recognized by geologists

• Evidence of foreign materials is found

• Ice covers a large portion of the Earth's surface

• Ice melts six times

The passage covers how many different methods of recognizing past ice ages?

• 1

• 2

• 3

• 4

According to the passage, what in the rock strata is a clue to geologists of a past ice age?

• Ice

• Melting glaciers

• U-shaped valleys

• Substances from other areas

The passage indicates that the ventricles

• have relatively thin walls

• send blood to the atria

• are above the atria

• force blood into the arteries

According to the passage, when is blood pushed into the arteries from the ventricles?

• As the blood beats

• Between heartbeats

• Before each contraction of the heart

• Before it is received by the atria

According to the passage, which part of the heart gets blood from the body tissues and passes it on to the lungs?

• The atria

• The ventricles

• The right atrium and ventricle

• The left atrium and ventricle

According to the passage, the Golden Age of Railroads

• occurred prior to the Civil War

• was a result of World War I

• was a period when most of the U.S. mass transportation was controlled by railroads

• resulted in a decrease in uniformity of track gauge

The passage mentions that which of the following occurred as a result of uniformity of track gauge?

• The Civil War

• Improved economy in the transportation system

• Standardization of time zones

• Railroad schedules

The passage indicates that standard time was implemented

• before the Civil War

• on June 1, 1886

• after World War 1

• before standardized track gauge was established throughout the United States