broad ecological system's preservation is based ona.The Environment Protection Actb.The Wildlife Protection Actc.The Air Prevention and Control of Pollution Actd.The Forest Conservation Act

The preservation of broad ecological systems is based on several laws and acts, each of which plays a crucial role in different aspects of environmental protection.

a. The Environment Protection Act: This act is a comprehensive legislation that provides for the protection and improvement of the environment. It empowers the government to establish authorities charged with preventing environmental pollution in all its forms and to tackle specific environmental problems that are peculiar to different parts of the country.

b. The Wildlife Protection Act: This act provides for the protection of wild animals, birds and plants with the aim of ensuring the ecological and environmental security of the country. It establishes a network of ecologically-important protected areas.

c. The Air Prevention and Control of Pollution Act: This act is specifically aimed at the prevention, control, and abatement of air pollution. It empowers the central and state pollution control boards to perform functions for maintaining and improving the quality of air.

d. The Forest Conservation Act: This act is aimed at the preservation and conservation of natural forests and meeting the basic needs of the people living in or near the forests. It restricts the dereservation of forests or use of forest land for non-forest purposes without the prior approval of the central government.

In conclusion, the preservation of broad ecological systems is not based on a single act but a combination of all these acts which together provide a framework for balancing the needs of development and conservation.