In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".

[EX Q]: What if you could drain all of Earths oceans? What would it look like? You might be really surprised. You see that the surface has two main features. It has continents and ocean basins. Continents are large land areas. These are the areas that are mostly above sea level. Ocean basins extend from the edges of continents. They include the ocean floor and Earths deep ocean trenches. You will also notice the ocean floor is not flat. It too has many Continents are much older than ocean basins. Some rocks on the continents are billions of years old. Ocean basins may only be millions of years old. Because the continents are so old, a lot has happened to them! As we view the land around us, we see landforms. Landforms are physical features on Earths surface. These features change over time, but how? There are actually two types of forces at work. <sep>What are the characteristics of continents?<sep>Billion years old
[EX A]: No

[EX Q]: Earths magnetic field helps protect Earth and its organisms. It protects us from harmful particles given off by the sun. Most of the particles are attracted to the north and south magnetic poles. This is where Earths magnetic field is strongest. This is also where relatively few organisms live. Another benefit of Earths magnetic field is its use for navigation. People use compasses to detect Earths magnetic north pole. Knowing this helps them tell direction. Many animals have natural 'compasses' that work just as well. Birds like the garden warbler in Figure 1.36 use Earths magnetic field. They use it to guide their annual migrations. Recent research suggests that warblers and other migrating birds have structures in their eyes. These structures let them see Earths magnetic field as a visual pattern. <sep>Where is Earths magnetic field strongest?<sep>Central magnetic pole
[EX A]: No

[EX Q]: Born in Moscow, Pushkin published his first poem at the age of fifteen. By the time he finished school as part of the first graduating class of the prestigious Imperial Lyceum in Tsarskoe Selo near Saint Petersburg, his talent was already widely recognized within the Russian literary scene. After school, Pushkin plunged into the vibrant and raucous intellectual youth culture of the capital, Saint Petersburg. In 1820 he published his first long poem, Ruslan and Lyudmila, amidst much controversy about its subject and style. Pushkin gradually became committed to social reform and emerged as a spokesman for literary radicals. This angered the government, and led to his transfer from the capital (1820). He went to the Caucasus and to the Crimea, then to Kamenka and Chisinau, where he became a Freemason. <sep>How did Pushkin become a famous Russian poet?<sep>He published his first long poem Ruslan and Lyudmila
[EX A]:
No