Blue ice, in the context of aviation, is frozen sewage material that has leaked mid-flight from commercial aircraft lavatory waste systems. It is a mixture of human biowaste and liquid disinfectant that freezes at high altitude. The name comes from the blue color of the disinfectant. Airlines are not allowed to dump their waste tanks in mid-flight, and pilots have no mechanism by which to do so; however, leaks sometimes do occur.

do airplanes dump their waste in the air?

A: no

The trade winds are the prevailing pattern of easterly surface winds found in the tropics, within the lower portion of the Earth's atmosphere, in the lower section of the troposphere near the Earth's equator. The trade winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere, strengthening during the winter and when the Arctic oscillation is in its warm phase. Trade winds have been used by captains of sailing ships to cross the world's oceans for centuries, and enabled European empire expansion into the Americas and trade routes to become established across the Atlantic and Pacific oceans.

do trade winds blow from west to east?

A: no

After six years, a second season, titled Blue Exorcist: Kyoto Saga, was announced in June 2016 and premiered on January 7, 2017. Koichi Hatsumi directed the sequel, while Toshiya Ono wrote the scripts, Keigo Sasaki designed the characters, and Hiroyuki Sawano and Kohta Yamamoto composed the series' soundtrack. A-1 Pictures returned to produce the animation. It was also announced that there would be five new characters in the sequel. The opening theme song was ''Itteki no Eikyo'' (, lit. ''Drop's Influence'') by Uverworld, while the ending theme song was ''Kono Te de'' (, lit. ''With This Hand'') by Rin Akatsuki.

is ao no exorcist season 2 a sequel?

A: yes

The series originated with A Wrinkle in Time, written in 1959 to 1960 and turned down by 26 publishers before Farrar, Straus & Giroux finally published it in 1962. A Wrinkle in Time won the Newbery Medal and has sold over 6 million copies. The sequel, A Wind in the Door, takes place the following year but was published over a decade later, in 1973. A Swiftly Tilting Planet, set ten years after A Wrinkle in Time, followed in 1978. The fourth title of the quintet, Many Waters, was published in 1986, but takes place several years before A Swiftly Tilting Planet. This is readily apparent from the fact that Sandy and Dennys Murry are in high school as of Many Waters, but refer to their college studies at the time of A Swiftly Tilting Planet; and from Meg's unmarried status as of Many Waters.

does a wrinkle in time have a sequel?

A:
yes