Q.Explain the three economic functions performed by the environment.

The environment is the sum total of all natural surroundings — land, water, air, climate, plants and animals — that support life and economic activity by providing resources and absorbing wastes.

This is a 2-mark short note in the AP Intermediate 2nd-year Economics environment unit.

The word 'environment' refers to everything that surrounds and affects living beings — the land, water, air, sunlight, climate, forests, plants, animals and micro-organisms, together with the natural processes that connect them. From an economic point of view, the environment performs vital functions: it supplies natural resources (minerals, water, soil, forests) used in production, it provides life-supporting services (clean air and water), and it absorbs the wastes generated by production and consumption. Because the economy depends on the environment for all these functions, protecting the environment is essential for continued development.

An ecosystem is a natural system in which living organisms interact with each other and with their non-living environment, exchanging energy and materials. Examples: a forest, pond or grassland.

This is a 2-mark short note in AP Intermediate 2nd year Economics, part of the environment theme, treated in line with the NCERT/CBSE curriculum.

Meaning. An ecosystem is a self-contained natural unit consisting of all the living organisms in a particular area - plants, animals and micro-organisms (the biotic components) - together with the non-living physical surroundings such as air, water, soil, sunlight and temperature (the abiotic components), all interacting with one another. Within an ecosystem there is a continuous exchange of energy and materials, for example through food chains and nutrient cycles, which keeps the system in balance. A forest, a pond, a lake, a desert and a grassland are common examples of ecosystems. The health of ecosystems is important for the environment and for the resources on which the economy depends.

Bio-diversity is the variety of all life forms on the earth, existing at three levels — genetic, species and ecosystem diversity. It maintains ecological balance and provides food, medicine and raw materials, so conserving it is essential for sustainable development. This is an AP Intermediate 2nd-year Economics topic on environment and the economy.

Meaning: Bio-diversity, short for biological diversity, refers to the wide variety and variability of living organisms — plants, animals and micro-organisms — found on the earth and the ecosystems they form. It is usually described at three levels:

1. Genetic diversity — the variety of genes within a single species, which allows species to adapt and survive.
2. Species diversity — the variety of different species of plants, animals and micro-organisms in a region.
3. Ecosystem diversity — the variety of ecosystems or habitats, such as forests, grasslands, wetlands, deserts and oceans.

Importance: Bio-diversity maintains ecological balance, keeps the food chain and natural cycles working, and provides food, medicines, timber, fibres and other raw materials for the economy. Its loss through deforestation, pollution and over-exploitation threatens the environment and human welfare, which is why its conservation is an important goal of sustainable development.

An ecosystem is a self-supporting natural unit made up of living organisms (biotic components) interacting with their non-living surroundings (abiotic components) through the flow of energy and the recycling of nutrients. Forests, ponds and grasslands are examples. This is an AP Intermediate 2nd-year Economics topic on environment and the economy.

Meaning: An ecosystem is a system formed by the interaction of a community of living organisms with one another and with their physical (non-living) environment in a particular area. It consists of two kinds of components:

1. Biotic components — all living things, including plants (producers), animals (consumers) and micro-organisms (decomposers).
2. Abiotic components — the non-living elements such as air, water, soil, sunlight, temperature and minerals.

Within an ecosystem, energy flows from the sun through plants to animals and decomposers, and nutrients are cycled repeatedly between the living and non-living parts. This keeps the system balanced and self-supporting. Ponds, lakes, forests, grasslands, deserts and oceans are common examples of ecosystems.

Importance: Ecosystems maintain ecological balance, support the food chain, purify air and water, and provide resources for human life and the economy, so their protection is essential for sustainable development.

An ecosystem is a natural unit in which living organisms (plants, animals, micro-organisms) interact with one another and with their non-living environment, with a continuous flow of energy and cycling of nutrients between them.

The ecosystem is a basic concept studied in the Environment and Sustainable Economic Development topic of the AP Intermediate 2nd-year Economics course (aligned with the NCERT/CBSE commerce curriculum).

Meaning. An ecosystem is made up of two main components. The first is the biotic (living) component — plants, animals and micro-organisms. The second is the abiotic (non-living) component — air, water, soil, sunlight and climate. Within an ecosystem these components constantly interact: green plants capture energy from the sun and make food, animals depend on plants and on one another, and micro-organisms break down dead matter and return nutrients to the soil. This gives rise to a continuous flow of energy and a cycling of nutrients. A forest, a pond, a grassland or even an agricultural field can each be regarded as an ecosystem. A healthy ecosystem maintains the balance of nature on which economic activity ultimately depends.

Bio-diversity is the variety of all forms of life on earth — the diversity of species, the genetic variety within each species and the variety of ecosystems. It is vital for ecological balance and for providing food, medicines, raw materials and environmental services.

Bio-diversity is studied in the Environment and Sustainable Economic Development topic of the AP Intermediate 2nd-year Economics course (aligned with the NCERT/CBSE commerce curriculum).

Meaning and types. Bio-diversity, short for biological diversity, refers to the enormous variety of living organisms found on the earth and the variability among them. It is usually described at three levels: species diversity, meaning the variety of different plant, animal and micro-organism species; genetic diversity, meaning the variety of genes within a single species; and ecosystem diversity, meaning the variety of habitats and ecosystems such as forests, wetlands, deserts and oceans.

Importance. Bio-diversity maintains ecological balance, provides food, medicines, timber and other raw materials, supports agriculture through pollination and pest control, and offers environmental services such as clean air, water and soil. Its loss through deforestation, pollution and over-exploitation is therefore a serious concern, making its conservation essential for sustainable development.