There are different types of food chains because ecosystems are diverse and complex, with a wide variety of organisms.

The Blue Revolution refers to a scheme launched by govt. for the growth and development of the country’s fisheries and aquaculture sector.

Communicable diseases can be caused by various pathogens, including bacteria, viruses , fungi , and parasites.

Elements or a substance can be classified into two categories. Metal and Non-metal. Both metal and non-metal have their own properties and characteristics. Based on this metal and non-metal have their own usage and advantages.