Which of the following elements is commonly present in petroleum, fabrics and proteins?
ACarbon
BChlorine
CSodium
DCalcium
Answer:
A. Carbon
Read Explanation:
The most common element in petroleum, fabrics, and proteins is carbon.
Explanation:
Petroleum: Petroleum is primarily composed of hydrocarbons, which are molecules made up of carbon and hydrogen atoms.
Fabrics: Fabrics can be made from natural or synthetic materials.
Natural fibers like cotton and wool are composed of organic compounds containing carbon, while synthetic fabrics like nylon are derived from petroleum, which is also carbon-rich.
Proteins: Proteins are made up of amino acids, and each amino acid contains carbon as a core element.
