Prelims Notes

Hydrofluorocarbons (HFCs) are a group of industrial chemicals primarily used for cooling and refrigeration. HFCs were developed to replace stratospheric ozone-depleting substances that are currently being phased out under the Montreal Protocol on Substances that Deplete the Ozone Layer. Many HFCs are very powerful greenhouse gases and a substantial number are short-lived climate pollutants with … Read more DMPQ- Write a short note on Hydrofluoro carbon?

Forests fires are as old as the forests themselves. They pose a threat not only to the forest wealth but also to the entire regime to fauna and flora seriously disturbing the b io-diversity and the ecology and environment of a region. During summer, when there is no rain for months, the forests become littered … Read more DMPQ- What are forest Fires? What are the causes of Forest fires?

The AQI is an index for reporting daily air quality. The concept of index is to have one Number one colour description for the common man to judge the air quality within his vicinity.  The index constituted part of the Government’s mission to introduce the culture of cleanliness. Institutional and infrastructural measures were being undertaken in … Read more DMPQ-Explain the concept of Air quality Index.

The Living Planet Index (LPI) is a measure of the state of global biological diversity based on population trends of vertebrate species from around the world. It does this in much the same way that a stock market index tracks the value of a set of shares or a retail price index tracks the cost … Read more DMPQ: Write a short note on Living Planet Index (LPI).

A carbon market allows countries, or industries, to earn carbon credits for emission reductions they make in excess of what is required of them. These credits can be traded to the highest bidder in exchange for money. The buyers of carbon credits can show the emission reductions as their own and use them to meet … Read more DMPQ- What do you understand by the term “ Carbon market”?

Impact of climate change on Flora: All the plants/tree species requires a specific temperature for their life processes like germination of seed, growth, flowering, fruiting etc. Changes in temperature have changed this cycle. Trees which are unable to adjust to this change are becoming endangered and might get extinct if not saved. Because of the … Read more DMPQ- How climate change affect the fauna and flora of the country?

Geo-demographic load: India Supports 17% population of the world with only 2.4% area of the world. This ever increasing population is putting great pressure on the natural resources of the country. Climate change Deforestation Habitat loss and fragmentation Overexploitation leading to shortening of Earth Overshoot day. Natural Calamities. Invasive species like water hyacinth, Congress grass, … Read more DMPQ-Enumerate the threat to biodiversity in India.