Evironment and Ecology has becoming a crucial section for the IAS Prelims Exam year after year. There is no dearth of the material for the Environment and Ecology but the candidates are required to read the basic books even when most of the part considered as an irrelevant in a view to the IAS Prelims Exam. Even the IAS Toppers also suggest to study relevant study material for IAS Exam.
To study the relevant study material is very important because it helps to save a lot of time and also keeps the candidate updated about the new development. Multiple choice questions are one of the best methods to prepare and to revise the subject in the shortest-span of time for IAS Prelims Exam.
Important Questions for IAS Prelims Exam 2020
IAS Preliminary Exam 2018: Expected Questions on Environment

Environmental Legislation in India Part 1 (Feb 6, 2018)
Concept of Sustainable Agriculture (Jan 25, 2018)
Modern Agriculture (Aug 17, 2017)
NIOS based Questions: Conservation of Soil and Land
NIOS based Questions: Conservation of other Natural resources
NIOS based Questions: BIODIVERSITY CONSERVATION
NIOS based Questions: Environmental Issues
NIOS based Questions:NATIONAL ENVIRONMENTAL ISSUES
NIOS based Questions:DISASTERS AND THEIR MANAGEMENT Set II
NIOS based Questions: DISASTERS AND THEIR MANAGEMENT Set I
NIOS based Questions: DEFORESTATION Set III
NIOS based Questions: ENVIRONMENTAL POLLUTION Set III
NIOS based Questions: ENVIRONMENTAL POLLUTION Set II
NIOS based Questions: ENVIRONMENTAL POLLUTION Set I
NIOS based Questions: HUMAN SOCIETIES Set I
NIOS based Questions: DEFORESTATION Set I
NIOS based Questions: Human Modified Ecosystem Set II
NIOS based Questions: Human Modified Ecosystem Set I
NIOS based Questions: NATURAL ECOSYSTEM
Degradation of Natural Environment
Origin of Earth and Evolution of Environment
Ecological Pyramid and Nutrient Cycling
Rainforest,Deciduous Monsoon Forest,Biome,Bread Basket Region
Food Chain,Primary Consumer,Food Web,Ecological Pyramid
Ecological Explosion,Ecotone,Chemosynthesis,Biogeochemical cycle
Miss Semple,Possibilism,Stratosphere,Biosphere
Species Types, Nutritional eutrophication,acid rain,Marble Cancer
Soil Types,biogeographical realm,xerophytic
Nitrogen Cycle,Greenhouse Gas, Biodiversity Hotspots, Ozone Depletion,Club of Rome
Planktonic,Biological Magnification,Young lakes,Good Ozone,Bio-diversity loss
United Nations Decade on Biodiversity,Commission on Phytosanitary Measures
Biosphere, Wetlands,Mangrove Forests
Chipko Movement,Ozone Hole,Chlorofluorocarbons,Global warming
Ecotone,Estuary, Carbon Credit,Coral Bleaching,BOD