A geology is a branch of science that deals with the study of Earth, its structure and materials made it. And the person who studies this is called as Geologist.
A rotating column of air is called as a Tornado which extends from the thunderstorm to the ground.
Auto-immune disease :: Sometimes, due to genetic and other unknown reasons, the body attack self-cells. This results in damage to the body and is called auto-immune disease.
From the options,
-> Rheumatoid arthritis is an autoimmune disorder in which antibodies are produced against the synovial membrane and cartilage.
-> Vitiligo causes white patches on skin also characterised as autoimmune disorder.
-> Psoriasis is a skin disease that causes itchy or sore patches of thick red skin and is also autoimmune.
-> Alzheimer's disease is a chronic neurodegenerative disease. Alzheimer's disease is due to deficiency of neurotransmitter acetylcholine.
Hence, Alzheimer's is not the auto-immune disease.
Laterite soils are a tropical soil and possess a great amount of iron and aluminum. Due to its high iron oxide content they look like rusty-red coloration.
Transported soils form from weathered material deposits, which are transported by natural forces to a new site, away from the site of origin.
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