Nitrogen is the main component of the Earth's atmosphere, making up about 78% of it.

The Earth's mantle is mainly composed of silicate minerals, which include olivine and pyroxene.

Wave-particle duality is a fundamental concept of quantum mechanics, indicating that particles exhibit both wave and particle properties.

Plasma is ionized gas, meaning it has free electrons and ions, while gas does not.

Liquids have a definite volume and take the shape of their container, while gases have neither a definite shape nor volume.

Latitude is the main factor that affects the climate of a region.

Latitude is the main factor that determines the climate of a region.

Wind is the primary factor that drives ocean currents, influencing their direction and speed.

Latitude is the main factor that influences climate in a region.

All of the above factors influence ocean currents.

Latitude is the main factor that influences the climate of a region.

The Atal Pension Yojana offers a guaranteed pension to workers in the unorganized sector, ensuring financial security in old age.

The Beti Bachao Beti Padhao scheme focuses on improving the child sex ratio and promoting education for girls.

The main function of dietary fats is energy storage, providing 9 calories per gram.

Dietary fiber promotes digestion by aiding in the movement of food through the digestive tract.

The main function of dietary fiber is to promote digestive health by aiding in bowel regularity.

Fats serve as a major source of energy storage in the body, providing 9 calories per gram.

Red blood cells are primarily responsible for transporting oxygen from the lungs to the rest of the body, making option 2 the correct answer.

The digestive system breaks down food into nutrients, which are then absorbed into the bloodstream for energy.

The National Health Mission aims to reduce maternal and infant mortality and improve healthcare services in rural areas.

The main goal of PMGSY is to improve road connectivity in rural areas, facilitating better access to markets and services.

The Pradhan Mantri Ujjwala Yojana aims to provide LPG connections to women from Below Poverty Line households to promote clean cooking fuel.

The Skill India Mission aims to enhance the skill sets of the youth to make them employable and promote entrepreneurship.

The Pradhan Mantri Awas Yojana aims to provide affordable housing to the urban poor, ensuring that everyone has access to a home.

The main product of photosynthesis is glucose, which serves as an energy source for the plant.

The Calvin cycle produces glucose as its main product, using carbon dioxide and energy from ATP and NADPH.

The reaction between an acid and a carbonate produces salt, water, and carbon dioxide.

The thermal decomposition of calcium carbonate produces calcium oxide (CaO) and carbon dioxide (CO2).

The oxidation of a primary alcohol typically produces a carboxylic acid.

Dehydration of an alcohol typically produces an alkene.