What is a "USB-powered coffee warmer"? A device to cool your coffee A laptop attachment A device to keep your coffee hot A coffee-flavored USB drive A USB-powered coffee…
What year was DNA fingerprinting first used in forensic science? 1980 1984 1987 1991 DNA fingerprinting was first used in forensic science in 1984. This breakthrough by Sir…
What is the primary function of reverse osmosis in water purification? Removes solid waste Softens the water Filters out contaminants Adds necessary minerals Reverse osmosis…
When was the term "robot" first used? 1920 1943 1956 1961 The term "robot" was first used in 1920 in Karel ÄŒapek's play "R.U.R." or "Rossum's Universal Robots." What was…
What defines an invasive species? Species harmful to the environment Species native to a local area Species beneficial to agriculture Species introduced by natural migration …
What was the purpose of the Miller-Urey experiment? Discover the origins of Earth's atmosphere Simulate early Earth conditions Test the effects of radiation on cells Study the…
Who proposed the theory of classical conditioning? Sigmund Freud Ivan Pavlov Carl Rogers Abraham Maslow Ivan Pavlov is renowned for his work in classical conditioning, which…
What is the primary use of Gingko biloba in traditional medicine? Enhancing memory Treating colds Skin care Muscle growth Gingko biloba is commonly used in traditional…
What is the primary color of a Painite? Red Blue Green Yellow Painite typically exhibits a reddish-brown hue, making it unique among gemstones. Which rare gemstone is known…
When was the Internet concept first introduced? 1969 1983 1958 1972 The concept of the Internet was first introduced in 1969 with the development of ARPANET, the Advanced…
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