Examlex
Venus can be seen during daytime when it is near its greatest brilliancy.
Human Activities
Actions and behaviors undertaken by humans, affecting the natural world and contributing to environmental changes.
Human Health
The overall state of physical, mental, and social well-being in individuals.
Biologically Extinct
A status indicating that a species no longer exists anywhere on Earth, surpassing the point of conservation or recovery.
Species At Risk Act
Canadian legislation aimed at protecting endangered or threatened species and their habitats from further harm.
Q16: Why does the Moon lack a true
Q37: Saturn's two shepherd moons herd the particles
Q42: Contrast the size, mass, and density of
Q44: At closest approach, Venus is about how
Q48: Mars's mass is only a tenth of
Q71: Which parts of the Sun's radiation are
Q85: Why do we know much more about
Q93: Which of the following have an icy
Q109: The plane in which almost all planets
Q139: As the solar nebula contracts due to