Questions

 Nataraga/ Natanarayana

An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom.

Here in the given compounds, the compound that contains ionic bond is CaO, Calcium oxide.

Air pollutants are solid particles, gases, and liquid droplets in the air that can adversely affect ecosystems and the health of humans.

Major ambient air pollutants include toxic metals, polycyclic aromatic hydrocarbons, benzene, particulate matter (PM), nitrogen oxides, sulfur oxides, carbon monoxide, and ozone. Power plants, factories, and vehicle and air traffic are the most important anthropogenic sources of air pollution.

In addition, natural sources such as wildfires and volcanic activity contribute to ambient air pollution.

Bengaluru becomes the first Indian city to get its very own logo

• Much like New York and Singapore, Bengaluru is set to get its own logo, becoming the first Indian city to do so.

Lord Ripon was the Viceroy of India from 1880 to 1884. He introduced Local Bodies (Local Self Governance) in 1882 and showed the taste of independence to Indians.