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GATE ESIISc Bengaluru and the seven older IITs, for NCB-GATE

Start GATE Environmental Science and Engineering preparation free Like it? Continue at just ₹29/month — less than ₹1 a day

General Aptitude, Engineering Mathematics and every Environmental Science and Engineering section, in 24 chapters.

First chapter + 1 full mock test free — no card needed

Start freeRead the free chapter
  • 24chapters
  • 65question full mock
  • 8syllabus sections
  • EN + हिंevery chapter in both

Exam pattern

GATE ES paper pattern

GATE Environmental Science and Engineering

  • 65 questions
  • 100 marks
  • 180 minutes
  • a wrong MCQ costs a third of its marks, a wrong MSQ or NAT nothing
  • General Aptitude — 15 marks10 Qs
  • Environmental Science and Engineering — 85 marks55 Qs

What you get

Everything for GATE ES, in one course

  • Chapters in English and Hindi24 chapters on the official syllabus, each ending in a quiz that explains every answer.
  • Mock tests in the real patternTimed and marked the way the exam is, negative marking included, with a section-by-section report.
  • Revision and weak-area analyticsSee which topics cost you marks, and revise them on a spaced schedule.
  • AI mentorPremiumAsk a doubt in English or Hindi, any hour, and get a plain answer.

Try it now

Try a real GATE ES question

A real question from the course. No sign-up needed.

From the chapter: Environmental Chemistry: Fundamentals, Water Chemistry, Soil Chemistry and Atmospheric Chemistry

In the sediment of a eutrophic lake, after dissolved oxygen and nitrate are exhausted, which electron acceptors are used next, in order?

Show the answer and why

Answer: B.

Microbes use acceptors in order of decreasing energy yield: O₂, NO₃⁻, Mn(IV), Fe(III), SO₄²⁻ and finally CO₂ (methanogenesis). That is why an anoxic lake bottom releases Mn and Fe before it smells of H₂S, and methane appears last. Option A reverses the middle of the ladder.

Syllabus

GATE ES syllabus, section by section

Open a section to see its chapters. General Aptitude’s first chapter is free.

General AptitudeFree chapter3 chapters
  1. Verbal Aptitude — Grammar, Usage, Vocabulary and ComprehensionFree
  2. Quantitative Aptitude — Ratios, Powers, Mensuration, Statistics and Data
  3. Analytical Aptitude — Number Relations, Analogy, Deduction and Induction
Engineering Mathematics10 chapters
  1. Linear Algebra — Rank, Consistency, Eigenvalues and Eigenvectors
  2. Limits, Continuity and Differentiability
  3. Differentiation and Applications of Derivatives
  4. Integration and Definite Integrals
  5. Multivariable Calculus — Partial Derivatives, Maxima and Multiple Integrals
  6. Differential Equations
  7. Numerical Methods — Roots, Quadrature and Stepping an ODE
  8. Probability and Statistics — Random Variables, the Five Distributions and Bayes
  9. Series and Taylor Expansion, Area and Volume, Nonlinear First-Order ODEs, and Numerical Approximation
  10. Statistics for Environmental Data: Shape, Risk and Reliability, Correlation, Regression and Hypothesis Tests
Environmental Chemistry (ES paper)1 chapter
  1. Environmental Chemistry: Fundamentals, Water Chemistry, Soil Chemistry and Atmospheric Chemistry
Environmental Microbiology (ES paper)1 chapter
  1. Environmental Microbiology: Microbial Groups, Cell Biology, Metabolism, Growth Kinetics and Water-Quality Microbiology
Water Resources and Environmental Hydraulics (ES paper)2 chapters
  1. Water Resources: Global Water, Surface Hydrology and Groundwater
  2. Environmental Hydraulics: Fluid Statics, Flow in Pipes, Flow Measurement and Channel Hydraulics
Water and Wastewater Treatment and Management (ES paper)2 chapters
  1. Water Quality, Lakes and Rivers, Reactor Kinetics, and Water Treatment
  2. Wastewater: Sources, Sewers, Sewage Treatment, Sludge and Industrial Effluents
Air and Noise Pollution (ES paper)2 chapters
  1. Air Pollution: The Atmosphere, Pollutants and Standards, Meteorology and Dispersion
  2. Air Pollution Control and Noise: Particulates, Gases, Vehicular Emissions and Noise
Solid and Hazardous Waste Management (ES paper)1 chapter
  1. Solid and Hazardous Waste Management: MSW, Processing and Landfills, Hazardous Waste and Special Streams
Global and Regional Environmental Issues (ES paper)1 chapter
  1. Global and Regional Environmental Issues: Climate, Acid Rain, the Ozone Hole, Ecology, Biodiversity and Population
Environmental Management and Sustainable Development (ES paper)1 chapter
  1. Environmental Management and Sustainable Development: EMS, EIA and LCA, Risk, Law and Policy, Energy and Sustainability

Price

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  • Basic₹29/monthless than ₹1 a day · every GATE chapter, mocks and PYQs
  • Free₹0first chapter + 1 full mock, no card
  • Premium₹399 oncethen ₹29/month · AI mentor, answer writing, unlimited mocks
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FAQ

Frequently asked questions

What does the GATE Environmental Science and Engineering course cost?

The first chapter of the GATE course is free. Every chapter of this paper, in English and Hindi, unlocks with the GATE plan — ₹29 a month, less than ₹1 a day, cancel anytime — with scored practice and the full-length ES mock test in the real 65-question pattern. Premium adds the AI mentor.

How much of the GATE ES syllabus is covered?

The whole paper: 10 Engineering Mathematics chapters as this paper's syllabus words them, and 11 chapters across all 8 discipline sections. General Aptitude is shared by every paper.

What is the GATE exam pattern?

65 questions for 100 marks in 180 minutes: General Aptitude for 15 marks and the paper for 85. A wrong MCQ costs a third of its marks; MSQ and NAT questions carry no negative marking.

Related

Other GATE papers

Start GATE Environmental Science and Engineering today

First chapter + 1 full mock test free — no card needed. Then the whole course is ₹29 a month — less than ₹1 a day. Cancel anytime.

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