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Question 1: What type of rock is formed from the cooling and solidification of magma or lava?
Question 2: The ancient Sumerian city of Ur was located in which present-day country?
Ur played a pivotal role in ancient Mesopotamian civilization and is believed to have been one of the world's first metropolises. The city's archeological site is located in present-day southern Iraq.
Question 3: In what year did the Battle of Waterloo take place?
The Battle of Waterloo was a decisive battle that marked the end of the Napoleonic Wars. It took place on June 18, 1815, near Waterloo in present-day Belgium. This battle saw the defeat of Napoleon Bonaparte by the Seventh Coalition, which included the armies of the United Kingdom, Prussia, the Netherlands, and others.
Question 4: What is the traditional dress worn by women in Japan?
The kimono is a traditional Japanese garment worn by women. It is a full-length robe with long sleeves and is tied with a sash called an obi. Kimonos are known for their intricate designs and are often worn on special occasions.
Question 5: What is the hardest natural substance on Earth?
Diamonds are rated at 10 on the Mohs scale of hardness, making them the hardest natural substance. They are so hard that only a diamond can scratch another diamond. They are primarily used in jewelry, but because of their hardness, they are also used for industrial purposes such as cutting, grinding, and drilling.
Question 6: How many paintings did Vincent van Gogh sell in his lifetime?
Despite being one of the most famous and influential artists today, Vincent van Gogh struggled to find success during his lifetime. He only sold one painting, "The Red Vineyard at Arles," which was bought by the Belgian painter and collector Anna Boch.
Question 7: Which company is known for developing the Android mobile operating system?
Android is a mobile operating system developed by Google. It is based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets.
Question 8: Who is the biggest producer of rice in the world?
China is the largest producer of rice in the world, producing over 200 million tons annually. Rice is a vital staple food for over half of the world's population.
Question 9: What is the longest river in South America?
The Amazon River has a total length of about 6,400 km (4,000 mi) and is the largest river in South America, with approximately one-fifth of the world's total river flow.
Question 10: In which movie did Tom Hanks play a FedEx employee stranded on an uninhabited island?
Cast Away was released in 2000 and was a critical and commercial success. Hanks' performance earned him a Golden Globe nomination for Best Actor. The film's iconic volleyball companion, Wilson, was named after the volleyball manufacturer.
never used android phones 
Never mind.
Igneous rocks form from the crystallization of molten materials. They are one of the three main rock types, the others being sedimentary and metamorphic. Examples of igneous rocks include granite and basalt.