Ecosystems and their Components
An ecosystem consists of all the living organisms in an area along with the non-living components of their environment. Energy flows through the ecosystem in a series of levels called trophic levels.
Major Topics for HSLC 2027
- Food Chains and Food Webs: The flow of energy and transfer of matter between organisms.
- Trophic Levels: Producers, consumers, and decomposers.
- Ozone Layer Depletion: The role of CFCs in damaging the ozone layer and its consequences.
- Waste Management: Biodegradable and non-biodegradable waste, and methods of disposal like recycling and composting.
Chapter-wise Question Answer
Study these Class 10 Science solutions for your board exams:
Q1: What are decomposers?
Ans: Organisms like bacteria and fungi that break down the complex organic matter of dead plants and animals into simpler inorganic substances.
Q2: Which gas is responsible for ozone depletion?
Ans: Chlorofluorocarbons (CFCs).
HSLC Science MCQ & PDF
Focus on the 10% law of energy transfer and the impact of human activities on the environment for the 2027 HSLC exams.
Download Our Environment PDF
Get complete notes and important question answers for Chapter 15.
Download Now