A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc. what does micrometeoroid mean in english? Micrometeoroid A micrometeoroid is a tiny meteoroid; a small particle of rock in space, usually weighing less than a gram.
During Equinoxes the tilt of the Earth (with respect to the Sun) is 0Â° and because of it duration of the day and the night are almost equal on Equinox day i.e. 12 hours. Equinoxes occur on 20th or 21st March and 22nd or 23rd September each year and both days has equal length of the day and the night.
Pyramid in Chichen Itza, Mexico, during the spring equinox. Spring equinox is another name for the equinox also known as vernal equinox and March equinox. An equinox is the moment in time (not a day-long event) when the Sun stands directly above the equator and day and night are of approximately equal length.