UPSC Prelims 2023 Environment & Ecology

Consider the following heavy industries : 1. Fertilizer plants 2. Oil refineries 3. Steel plants Green hydrogen is expected to play a significant role in dec...

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by rem...

Consider the following statements:  Statement I: Marsupials are not naturally found in India.  Statement II: Marsupials can thrive only in montane grasslands...

Which one of the following makes a tool with a stick to scrap insects from a hole in a tree or a log of wood?

Invasive species Specialist Group' (that develops Global Invasive Species Database) belongs to which one of the following organizations?

Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used?

Consider the following statements :  Statement-I : According to the United Nation's 'World Water Development Report, 2022', India extracts more than a quarte...

Consider the following activities : 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. ...

Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change. Stateme...

Consider the following statements regarding Mercury pollution : 1. Gold mining activity is a source of mercury pollution in the world. 2. Coal-based thermal ...

Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?

Consider the following statements :  1. In India, the Biodiversity Management committees are key to the realization of the objectives of Nagoya Protocol. 2. ...