General Awareness Questions

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.

India's nominee to International Court of Justice (ICJ) Dalveer Bhandari (70) was re-elected to fifth and the last seat of World court. Bhandari received 183-193 votes in United Nations General Assembly and secured all 15 votes in UN Security Council (UNSC). He was elected after Britain withdrew its candidate from the election. This is the first time since the ICJ was established in 1945 that there will be no British judge in ICJ. Bhandari is fourth Indian judge to be elected to ICJ after B.N. Rau, Nagendra Singh and RS Pathak.

Pinctada vulgaris is a bivalve from which pearl is obtained.

The Robe

Defence Research and Development Organisation (DRDO) has developed an unmanned, remotely operated tank which has three variants - surveillance, mine detection and reconnaissance in areas with nuclear and bio threats. It is called Muntra.