Questions

India ranks 131 in the 2016 Human Development Index (HDI) among the 188 countries. It scored 0.624 and was placed in medium human development category.

The index was unveiled recently as part of the Human Development Report (HDR) 2016 titled Human Development for Everyone published by the United Nations Development Programme (UNDP).

Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.

Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.

Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.

Hence, Acidrain is a secondary air pollutant.

Salivary glands of man are 3 pairs = 6. They are one pair of parotid glands, one pair of sub-maxillary or sub-mandibular glands and one pair of sub-lingual glands.

surya sukta--a hymn in the praise of the sun god

•dana stuti--these are hymns in the praise of those who donate

•urna sutra--is the dot/mark on the forehead that is put before performing rituals.

•purusha sukta---contains hymns about marriage ceremonies

A relationship.

It returns -1