IAS 2018 — Environment & Ecology

Consider the following statements : 1. Most of the world's coral reefs are in tropical waters. 2. More than one-third of the world's coral reefs are located in the territories of Australia, Indonesia and Philippines. 3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests. Which of the statements given above is/are correct ?

Which of the following statements best describes "carbon fertilization"?

Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss ? 1. Hard and waxy leaves 2. Tiny leaves 3. Thorns instead of leaves Select the correct answer using the code given below :

With reference to the circumstances in Indian agriculture, the concept of "Conservation Agriculture" assumes significance. Which of the following fall under the Conservation Agriculture ? 1. Avoiding the monoculture practices 2. Adopting minimum tillage 3. Avoiding the cultivation of plantation crops 4. Using crop residues to cover soil surface 5. Adopting spatial and temporal crop sequencing/crop rotations Select the correct answer using the code given below :

The Partnership for Action on Green Economy (PAGE), a UN mechanism to assist countries transition towards greener and more inclusive economies, emerged at

Consider the following: 1. Birds 2. Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases?

Consider the following statements : 1. The definition of "Critical Wildlife Habitat" is incorporated in the Forest Rights Act, 2006. 2. For the first time in India, Baigas have been given Habitat Rights. 3. Union Ministry of Environment, Forest and Climate Change officially decides and declares Habitat Rights for Primitive and Vulnerable Tribal Groups in any part of India. Which of the statements given above is/are correct ?

How is the National Green Tribunal (NGT) different from the Central Pollution Control Board (CPCB) ? 1. The NGT has been established by an Act whereas the CPCB has been created by an executive order of the Government. 2. The NGT provides environmental justice and helps reduce the burden of litigation in the higher courts whereas the CPCB promotes cleanliness of streams and wells, and aims to improve the quality of air in the country. Which of the statements given above is/are correct ?

Which of the following is/are the possible consequence/s of heavy sand mining in riverbeds ? 1. Decreased salinity in the river 2. Pollution of groundwater 3. Lowering of the water-table

In which one of the following States is Pakhui Wildlife Sanctuary located ?