The Exam Hall

Setting out the paper…

Topics covered in this unit

8 topics tagged
  • Carbon and Oxygen Cycle5
  • Ecological Interdependence4
  • Ecological Pyramid4
  • Energy Flow in the Ecosystem4
  • Food Chain and Food Web3
  • Ecological Imbalance2
  • Environmental Problems2
  • Solutions of Environmental Problems1

Every question is tagged to one of these topics, so your result shows which part of the chapter to revise.

Before you start

There is no negative marking on this paper, so leave nothing blank.

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Frequently asked questions

How many MCQs are in Class 8 General Science Unit 1: Ecology?
This test has 25 MCQs and a 25-minute timer. There is no negative marking.
Which topics does Class 8 General Science Unit 1 cover?
Carbon and Oxygen Cycle, Ecological Interdependence, Ecological Pyramid, Energy Flow in the Ecosystem, Food Chain and Food Web, Ecological Imbalance, Environmental Problems and Solutions of Environmental Problems. Each question is tagged to one of these topics, so your result shows which ones to revise.
Which textbook is this Class 8 General Science unit based on?
It follows Unit 1, "Ecology", of the Class 8 General Science textbook published by the Punjab Curriculum and Textbook Board (PCTB).
Can I practise the other Class 8 General Science units?
Yes. Class 8 General Science has 12 unit tests, all listed on the Class 8 General Science chapter-wise page, and the full Class 8 set is on the Class 8 page.