ICSE Class 11 Environmental Science — Flashcards for Quick Revision

A: Environmental science is the interdisciplinary study of the environment and the various factors that influence it. It combines biology, chemistry, physics, geography, and social sciences to understand

A: It is interdisciplinary because environmental problems involve living organisms, chemicals in air and water, physical processes, landforms, and human society. One subject alone cannot explain issues l

A: It provides scientific data and methods to study environmental change, identify causes, and develop solutions. This helps in pollution control, conservation, sustainable development, and better public

A: A mode of existence is the characteristic way in which a society organises its livelihood, uses natural resources, structures its social institutions, and defines its relationship with nature.

A: The four principal modes of existence are hunting-gathering, pastoral, agricultural, and industrial.

A: It is based on meeting immediate needs. Food is collected from wild plants and animals, and surplus storage is minimal.

A: Ecology is the branch of biology that deals with the study of interactions among organisms and between organisms and their environment.

A: An ecosystem is a functional and self-sustaining unit of nature in which living organisms interact with the non-living components of the environment.

A: Producers, consumers, and decomposers are the biotic components of an ecosystem.