Insects have a global population of 10 quintillion individuals. Fish comprise 3.5 trillion individuals across 32,000 species. Birds are estimated at 50 billion individuals across 10,000 species. Reptiles have over 10,000 species globally. Sea anemones have over 1,000 known species
Viruses reproduce inside host cells, producing thousands of identical copies. Over 5,000 virus species have been discovered. Viruses consist of genes, protein coat, and sometimes fat envelope. Spread through vectors in plants and infected bodily fluids in animals. Immune system usually eliminates viral infections, vaccines prevent some
Global issues are public concerns worldwide affecting people globally. UN and World Economic Forum maintain official global issue lists
India is the seventh-largest country in the world by area. Borders Pakistan, China, Nepal, Bhutan, Bangladesh and Myanmar. Coastline measures 7,517 kilometres, with 43% sandy beaches. Climate influenced by Himalayas and Thar Desert. Temperature has risen 0.7°C between 1901 and 2018
Snails are shelled gastropods found in various environments. Most snails have a radula with thousands of microscopic teeth. Snails can be terrestrial, marine or freshwater species. Shells are made of calcium carbonate and conchin proteins
Human activities directly or indirectly affect biophysical environments and ecosystems. Population growth, economic growth, and resource consumption drive environmental issues. Human civilization has caused loss of 83% of wild mammals and half of plants