The ecosystem term was coined by A.G. Tansley in 1935. The ecosystem is the structural and functional unit of ecology where biotic (living beings) and abiotic (non-living things) interact with each other to maintain balance in the environment.

The interconnection between different food chains of an ecosystem gives rise to a graphical web-like representation called food web. Example of a food web: In this given food web, tiger is the top carnivore.

CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 16

MEDIUM

10th CBSE

IMPORTANT

Earn 100

Which of the following materials are non-biodegradable?
(a) Paper, leather, nylon, eggshell, glass
(b) Tea leaves, glass, glucose, cotton cloth, silver foil
(c) Glass, glucose, leather, silver foil, nylon cloth

Important Questions on Our Environment

MEDIUM

10th CBSE

IMPORTANT

CORE SCIENCE BIOLOGY For Class 10>Chapter 5 - Our Environment>EXERCISE - 5A>Q 17

Which of the following materials is biodegradable?
(a) wool, glass, silver foil, leather.
(b) leather shoe, Earthen pot, silver spoon, jute bag.
(c) tomato leaves, Aluminium wire, Synthetic fiber, wool.