A dentist is a specialized healthcare professional who focuses on the diagnosis, prevention, and treatment of conditions related to the teeth, gums, and mouth. They conduct routine examinations, cleanings, and X-rays to detect issues like cavities, gum disease, or misalignment....
The Thirteen Colonies were a group of British colonies established along the Atlantic coast of North America during the 17th and 18th centuries, serving as the foundation for the United States. They are typically divided into three regions: New England,...
A rectangle is a two-dimensional quadrilateral shape with four sides, where all interior angles measure 90 degrees. Opposite sides are equal in length and parallel, making it a type of parallelogram. The diagonals of a rectangle are equal in length...
Food poisoning is an illness caused by consuming contaminated food or beverages, often due to bacteria, viruses, parasites, or toxins. It typically occurs when food is not handled, prepared, or stored properly, leading to symptoms such as nausea, vomiting, diarrhea,...
A metalhead is a devoted fan of heavy metal music, embodying a subculture defined by intense passion for genres like thrash, death, black, and doom metal. Characterized by a rebellious spirit, they often sport long hair, band merchandise, leather jackets,...
The water cycle, also known as the hydrological cycle, is a continuous process that circulates water throughout the Earth. It begins with evaporation, where heat from the sun turns water from oceans, rivers, lakes, and soil into water vapor in...
SAT Math Overview The SAT Math section evaluates mathematical reasoning and problem-solving skills, consisting of two main parts: a No Calculator section (20 questions, 25 minutes) and a Calculator section (38 questions, 55 minutes). The total score for Math is...
Radar technology, an acronym for Radio Detection and Ranging, is a system that uses radio waves to detect objects, measure distances, and determine speeds. It operates by emitting electromagnetic waves that bounce off targets and return as echoes, which are...
A calculator is an electronic device or software application designed to perform mathematical operations quickly and accurately. It typically includes basic functions such as addition, subtraction, multiplication, and division, while advanced models offer features like scientific calculations, statistical analysis, graphing,...
The National Aeronautics and Space Administration (NASA) is an independent agency of the United States federal government, responsible for the nation's civilian space program, aeronautics research, and scientific exploration of space. Established on July 29, 1958, NASA has played a...