Explanation

An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid. 

Explanation

A vertebrate is an animal with a spinal cord surrounded by cartilage or bone.

  Vertebrates include birds, fish, amphibians, reptiles, and mammals.

Explanation

Explanation

Golden rice is a variety of rice produced through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of rice.

Explanation

Potassium permanganate is an inorganic chemical compound and it is a strong oxidizing agent

Explanation

Coagulation and filtration is one of the most common water treatment techniques used by larger water systems, used for removing particulates and turbidity from surface water.

Explanation

The world's biggest killer is ischaemic heart disease, responsible for 16% of the world's total deaths. 

Explanation

Thomas Harriot, of course, was very likely the first person to see sunspots through a telescope in December 1610.

Sun is a star

Explanation

The most available form of solid fuel is wood. Wood is obtained from the trees and when trees die and decomposed for years through is called coal.

Explanation

There are four stages in coal formation: peat, lignite, bituminous, and anthracite.