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A nutrient is a substance used by an organism to survive, grow, and reproduce. These are compounds in foods essential to life and health, providing us with energy.

There are two types of nutrients:

1. Organic Nutrients
2. Inorganic Nutrients

Carbohydrates (CHO), Lipids (fats), Proteins and Vitamins come under organic nutrients as they contain carbon. These can add fat to the body.

Minerals and Water come under inorganic nutrients as they lack in carbon. These cannot add fat to the body.

Goosebumps are caused by the contraction of the tiny muscles attached to hair follicles. These muscles are arrectores pilorum muscles.

A person one who writes books, stories or articles is called as an author.

From the given list of numbers, by observing

Only 3 pairs of numbers have the difference of 12.

They are 

20 - 32

44 - 32

44 - 56.

ZIP file is an archive file format that supports lossless data compression. Lossless is a fairly popular data compression method that is used in a number of different applications. Files can become corrupted when they are transferred over the internet in an uncompressed format. It enables devices to transmit or store the same amount of data in fewer bits.

Mitochondrial DNA analysis is best suited for Forensic science analysis.

Transported soils form from weathered material deposits, which are transported by natural forces to a new site, away from the site of origin.

Chemical weathering is the process of altering rocks chemically when they are broken down. It includes hydrolysis, oxidation, acid rain, etc...