Plant diseases can be infectious (transmitted from plant to plant) or noninfectious. Noninfectious diseases are usually referred to as disorders. Common plant disorders are caused by deficiencies in plant nutrients, by waterlogged or polluted soil, and by polluted air.
Such refinements in the images of Betelgeuse's atmosphere has been helping to resolve the mystery of how massive amounts of dust and gas are expelled from red supergiant stars, an important source of enrichment for the interstellar medium.
The star Betelgeuse (or beetlejuice) is a Type M red supergiant in the constellation Orion. It is pronounced bet-L (like the letter L) -geese, meaning armpit of the giant â¦ .It is very luminous, and one of the largest stars known [See Link].etelgeuse is the eighth brightest star in the night sky and the second brightest star in the constellation of Orin. It is classified as a Red Giant. Astronomers believe that â¦ Betelgeuse is only 10 million years old, but has evolved rapidly due to its high mass.