GED Science Practice

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Prepare for the GED Science Exam with our comprehensive quizzes featuring flashcards and multiple-choice questions. Each question includes hints and explanations to help you grasp essential concepts and succeed.

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What is a possible outcome of a star ejecting some of its material in the form of a cloud and becoming more luminous?

Natural selection
Nova
Nearsightedness
Night blindness

The correct answer is: Nova

A star ejecting some of its material in the form of a cloud and becoming more luminous is indicative of a nova. In astronomical terms, a nova refers to a cataclysmic explosion on the surface of a white dwarf star in a binary system, where it accumulates hydrogen from a companion star. When enough material is gathered, it undergoes a fusion reaction, resulting in a dramatic increase in brightness, often visible from Earth. The ejected materials can form a cloud around the star, contributing to the characteristic appearance of a nova event. This process showcases the dynamic lifecycle of stars and the incredible phenomena associated with the late stages of stellar evolution. Other choices relate to biological concepts that do not pertain to stellar phenomena, making them irrelevant in the context of star behavior and characteristics.