Skip to content

ZIMSEC O-Level Biology

8.19.1Threats and conservation measures

Threats and conservation measures in ZIMSEC O-Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic84 practice questions4 lessons

Overview

Form 4.

Learning objectives

What the syllabus expects you to be able to do.

  1. 8.19.1.1Describe threats to biodiversity: deforestation, invasive species, habitat destruction, climate change and pollution.
  2. 8.19.1.2Describe conservation measures, such as afforestation, the use of alternative sources of energy and the protection of endangered species.

Lessons

  • Conservation and sustainable resources

    20 min

    Full access
  • Habitat destruction and deforestation

    19 min

    Full access
  • Pollution of water and land

    18 min

    Full access
  • The enhanced greenhouse effect and climate change

    18 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Threats and conservation measures: sample question

1 mark

(Supplement) True or false: using fishing nets with a larger mesh size helps to conserve fish stocks.

Is the statement true or false?

Turn Threats and conservation measures into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.