Problem: Plants also detect the daily cycle of light and darkness. Do you know how plants respond to these changes? Some plants open their leaves during the day. It is during these hours the plant can collect sunlight. At night, the plant closes its leaves to prevent water loss. Many plants respond to the change in the length of the day. As days grow shorter, some plants respond by going dormant. Dormant is when a plant suspends its growth. It does this in order to survive. Shorter days signal the coming of winter. Winter in most areas means extreme cold. It is also very dry in the winter months. As winter approaches, some plants respond by their leaves changing color. After the change in color, they fall off. This dormancy period helps trees. It allows them to survive the cold and dry winter. Plants only want to grow when conditions are right.

Question: "What are two ways some plants might respond to daily cycles?"

Answer: "A plant may open its leaves to collect sunlight during the day and close them at night to prevent water loss"

OPTIONS:
- no
- yes
Answer: yes

Problem: The modern Republic of Turkey dates only from 1923, but the history of the land within its borders stretches back to the dawn of humanity. Widespread finds of Stone Age implements in cave excavations show that Anatolia was already inhabited during the Middle of the Palaeolithic period (about 200,000 to 40,000 years ago). By Neolithic times, organized communities had arisen, such as the one at Catalhoyuk, near Konya, Turkey's most important prehistoric site. This town, which flourished between 6500 and 5500 b.c. , had flat-roofed houses of mud and timber decorated with wall-paintings, some of which show patterns that still appear on Anatolian kilims. The advent of the Bronze Age (about 3200 b.c. ), and the spread of city-states ruled by kings, is marked by the appearance of royal tombs containing bronze objects in such places as Troy in the west, and Alacahoyuk near Ankara. Around this time the Sumerian civilization living in Mesopotamia (the region between the Tigris and Euphrates rivers in present-day Iraq) founded and developed the cuneiform script, the world's oldest form of writing on record. The technique was introduced by Assyrian traders 1,000 years later into Anatolia, where it was quickly adopted by the indigenous Hatti people, who, at this point, had already reached an advanced state of civilization. The Hittites: The capital of the Hatti was Kanesh (modern Kultepe, near Kayseri). Cuneiform tablets found here record the arrival in Anatolia of warlike invaders around the second millennium b.c. Their origins remain a mystery (their written language was finally deciphered in 1915), but they came from the direction of the Caucasus mountains, spreading destruction and disorder throughout Anatolia. It was two hundred years before they were firmly entrenched in their newly conquered empire. The newcomers were the Hittites, and their domination of Anatolia can be divided into three distinct periods: the Old Kingdom (c. 16001450 b.c. ), then the New or Empire Period (c. 14501200 b.c. ), and the Late Hittite Period (c.

Question: "What do we know about the Cuneiform tablets found at the capital of the Hatti was Kanesh?"

Answer: "Cuneiform was introduced around 2200 b.c"

OPTIONS:
- no
- yes
Answer: yes

Problem: For much of the world, the Algarve is synonymous with Portugal, yet the Portuguese will tell you the exact opposite: the region has little in common with the rest of the country. The southern stretch of coast is more reminiscent of a North African landscape than a European one. It has no cosmopolitan cities, like Lisbon and Porto, which are farther north. Most of Portugal is known for quaint towns, medieval castles, and grand palaces. The Algarve is more recognizable for impenetrable blocks of tourist apartments, hotels, and meticulously manicured golf courses. And beaches. Think Algarve and the mind pictures long, glorious stretches of golden sands, secluded coves framed by odd ochre-colored rock formations, and deep green waters. With about 160 km (100 miles) of coastline, Portugal's southern province is one of Europe's premier beach destinations. The occasionally chilly ocean is the Atlantic, but the Algarve has a sultry Mediterranean feel. Its consistent climate is the best in Portugal, and one of the kindest in the world: more than 250 days of sunshine a yearmore than almost any other international resort area. The moderating effect of the Gulf Stream produces a fresh springtime breeze throughout winter, and in late January and February, white almond blossoms blanket the fields. In summer the heat is intense but rarely unbearable, and regardless, beautiful beaches and innumerable pools are always just a dive away. Magnificent year-round weather has made the Algarve a huge destination for sporting vacations. Superb golf facilities aboundseveral with tees dramatically clinging to cliffs and fairways just skirting the edge of the oceanand horseback riding, tennis, big-game fishing, sailing, and windsurfing are immensely popular. Sports, beaches and hospitable weathernot to mention easily organized package vacationsare surely the reasons the Algarve receives as many visitors as the rest of Portugal in its entirety. But it's not just international tourists that descend on the Algarve; many Portuguese from Lisbon and elsewhere in the north have holiday homes and spend their summer vacations here. The coast is neatly divided into the rugged Barlavento to the west and the flat beauty of Sotavento to the east. West is where you'll find the famous orange cliffs and surreal eroded rock stacks.

Question: "Which division of the Algarve coast has the orange cliffs and rock stacks?"

Answer: "South"

OPTIONS:
- no
- yes
Answer:
no