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

The lithosphere is the rocky outer part of the Earth.

It is made up of the brittle crust and the top part of the upper mantle.

The lithosphere is the coolest and most rigid part of the Earth.

Explanation

Oxygen is the chemical element with the symbol O and atomic number 8. 

Explanation

Calcium is a mineral found mainly in the hard part of bones, where it is stored.

Explanation

Explanation

A fluorescent lamp consists of a glass tube filled with a mixture of argon and mercury vapour.

Explanation

Lipids are an umbrella term for Triglycerides, Phospholipids and Sterol.

Explanation

Eugenics is the practice or advocacy of improving the human species by selectively mating people with specific desirable hereditary traits

Explanation

A bell works with the principle of working of electromagnetism.

Explanation

A rectifier is an electrical device that converts alternating current (AC),

which periodically reverses direction, to direct current (DC), which flows in only one direction.