Environmental Science – Group 4 Topic Quiz

About this quiz

This quiz has 30 multiple-choice questions on Environmental Science, from the General Science unit of the TNPSC Group 4 General Studies syllabus. - Time allowed: 30 minutes - Each question has four options and only one correct answer - No negative marking - Pass mark: 35% - Each answer comes with an explanation after you submit Topics covered: - Environment and the Ecosystem - Energy Flow, Food Chains and Biogeochemical Cycles - Biodiversity and Its Loss - Environmental Pollution: Air, Water, Soil and Noise - Greenhouse Effect, Climate Change and Ozone Depletion - Conservation, Environmental Laws, Bodies and Important Days Syllabus reference: Environment and ecology; Pollution; Climate change; Biodiversity and conservation; Environmental laws and bodies

How it works

• Move freely between questions, mark them for review and change answers until you submit.
• The clock runs until you submit. When time is up, your answers are submitted.
• Pause any time — continue later here or in the app with the time you had left.
• You won't see right or wrong while you answer.
• After you submit: your score, rank, the correct answers and explanations.
• A submitted attempt is final and cannot be changed.
• Wrong answers lose marks (negative marking).
• XP is given once; a retake earns more only if you beat your best score.

Sample questions

1. 1The special role an organism plays in its surroundings, such as what it eats and what eats it, is called its ________.

   • Ahabitat
   • Bniche
   • Cbiosphere
   • Dpopulation

2. 2Bacteria and fungi, which break down dead bodies and wastes and return simple nutrients to the soil, are called ________.

   • Aproducers
   • Bprimary consumers
   • Comnivores
   • Ddecomposers