Examlex
During the 1960s and 1970s,scientists designed a spacecraft based on nuclear propulsion,but it was never built.
Hashtag
A word or phrase preceded by a hash sign (#), used on social media to identify messages on a specific topic.
Wi-Fi Log
A record of activities, devices, or connections within a Wi-Fi network, often used for monitoring or troubleshooting.
Audience
An audience is a group of people who gather either physically or virtually to watch, listen to, or read something, such as a performance, presentation, or publication.
Back-Up Plan
A predetermined alternative course of action or strategy to be used if the primary plan fails or becomes unviable.
Q2: One possible ingredient of dark matter is
Q20: Elliptical galaxies are more likely to be
Q30: Suppose a scientist holds a press conference
Q36: Mesopotamian civilization<br>A) developed during the Paleolithic Era.<br>B)
Q39: Based on counting the number of galaxies
Q56: What do we mean by dimension in
Q60: Cambyses and Darius Pages
Q67: Astronomers observe huge bubbles of hot gas,some
Q78: Which of the following is not true
Q88: Individual galaxies generally have higher mass-to-light ratios