Environment Sustainable Development test - 1

Environment is sum total of external forces which surround us.

It includes all the biotic and abiotic factors that influence each other.

• Biotic Elements - Biotic elements include all living elements like birds, animals and plants, forests, fisheries, etc...
• Abiotic elements - Abiotic elements include non- living elements like air , water, land, etc..

All living elements are boitic elements whereas all  non - living elements are abiotic elements.

All living elements are biotic like birds,animals and plants,forests,fisheries,etc... whereas all non- living elements are abiotic like air,water,land,etc...

Renewable resources are those which can be used without the possibility of the resource becoming depleted or exhausted, i.e. a continuous supply of the resource remains available. For e.g. trees in the forests and fishes in the oceans.

Resources include both renewable and non-renewable resources. Renewable resources are those which can be used without the possibility of the resources becoming depleted or exhausted. For Example- Trees in forest.

Non renewable resources are those which get exhausted with extraction and use because the rate at which these resources re-emerge is far short of the rate at which these resources are being exploited for use. For example - fossil fuel.

Carrying capacity is the maximum number of individuals of a given species that an area's resources can sustain indefinitely without significantly depleting or degrading those resources. Determining the carrying capacities for most organisms is fairly straightforward.

Absorptive capacity has been defined as "a firm's ability to recognize the value of new information, assimilate it, and apply it to commercial ends". It is studied on individual, group, firm, and national levels.

Global warming is a gradual increase in the average  temperature of the earth's atmosphere. It is caused by man-made increase in carbon dioxide and other greenhouse gases through the burning of fossil fuels and deforestation.

The primary greenhouse gases in earth's atmosphere are water vapour(H₂O) , carbon dioxide(CO₂) , methane(CH₄), nitrous oxide(N₂O), and ozone(O₃).

The National Oceanic and Atmospheric Administration released its annual index of 20 key greenhouse gases. It shows, The atmospheric concentrations of carbon doxide and CH₄ have increased by 40 per cent and 140 per cent respectively above pre-industrial levels since 1750.