Year 2 — Term 2
7 study notes · 70 practice questions · Aligned with NIE syllabus
Counted in the Idasara Academy app, which you open with a free account. The free notes, revision, practice and library pages for each lesson are linked below.
Lessons in This Term
Ecosystem components
Environmental Biology is the scientific study of the relationships between organisms and their environment, including the interactions among living organisms and between organisms and their physical surroundings.
Ecosystem processes
Niche and Habitat: A niche is the specific role or position that an organism occupies within an ecosystem, including its interactions with biotic and abiotic factors.
World biomes
Biomes as Major Ecological Units: A biome is a large geographical area characterized by distinct climate, vegetation, and animal life, forming a major ecological community type on Earth.
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Ecosystem Diversity in Sri Lanka: Ecosystem diversity refers to the variety of different ecosystems found within a geographical region, each with unique biotic and abiotic components and ecological processes.
Biodiversity and threats
Biodiversity and Its Components: Biodiversity refers to the variety of life forms at all levels of biological organization, including genetic diversity, species diversity, and ecosystem diversity.
Global environmental problems
Global Warming and Climate Change: Global warming refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the emission of greenhouse gases, while climate change encompasses broader changes in climate patterns including temperature, precipitation, and extreme weather events.
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In-situ and Ex-situ Conservation: In-situ conservation refers to the conservation of species in their natural habitats, while ex-situ conservation involves protecting species outside their natural habitats in controlled environments.