Environment

Red Data Book - It is a document established by IUCN in the year 1964 for documenting rare and endangered species of animals, plants, and fungi. IUCN - 'International Union for Conservation of Nature and Natural Resource' The IUCN Red List is the major global reference for threatened species.

Sustainable development The Brundtland Report of 1987 popularised the modern definition of sustainable development.

A place where an organism or a community of organisms lives, including the living and nonliving conditions of their surrounding environment, is called a habitat A habitat is the place where an organism normally lives; a niche is its functional role.

Oxides of Sulphur and Nitrogen The source marks sulphur and nitrogen oxides as the answer; their atmospheric effects are complex and differ from those of major greenhouse gases.

is a major air pollutant produced by burning sulphur-containing fossil fuels

Secondary pollutants form in the atmosphere through chemical reactions; photochemical smog is a standard example

The Forest Conservation Act enacted on 25 October 1980. It provides the conservation of forests and matters connected to the habitat of many animals as well The Forest (Conservation) Act, 1980 centralised control over diversion of forest land

s are not a single naturally occurring greenhouse gas category in the same sense as carbon dioxide, methane and ozone

'Global 500 Awards' are given for outstanding achievement in ?the Protection of environment UNEP’s Global 500 awards recognised outstanding environmental achievement and were instituted in 1987

s have enormous extent, strong nutrient and energy cycling, and relatively stable physical conditions compared with many terrestrial ecosystems

The main greenhouse gases whose concentrations are rising are carbon dioxide, methane, nitrous oxide, hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs) and ozone in the lower atmosphere Carbon dioxide and methane are major greenhouse gases; human activities have substantially increased their atmospheric concentrations

The Indian flying fox is India's largest bat, and one of the largest bats in the world The Indian flying fox is a large fruit bat and is a pollinator and seed disperser

Settlements are part of the human/cultural environment, not the physical environment. Physical environment includes landforms, soil, water, minerals and atmosphere.

Ionosphere is an atmospheric ionised layer; it is not normally listed as a basic component of the natural environment in the conventional classification used in this question.

Oxides of nitrogen and sulphur combines with the hydrogen in air to form acids i.e. nitric acid, sulphuric acid which are harmful and result in acidic rain.

The Indian Red Data Book records information on threatened and endangered species; the broader modern concept is represented by IUCN Red Lists.

Examples of renewable energy sources are: Solar energy, Wind power, Biomass, Tidal energy, Geothermal energy.

A biome is a large ecological region defined by characteristic climate, vegetation and animal life. Major examples include deserts, grasslands and tropical forests.

Minamata disease is a neurological disease caused by severe mercury poisoning.

etc.