DENDROLOGY

Detailed explanation-1: -Decomposers include saprophytes such as fungi and bacteria. They directly thrive on the dead and decaying organic matter. Decomposers are essential for the ecosystem as they help in recycling nutrients to be reused by plants.

Detailed explanation-2: -Biodiversity provides us with drinking water, oxygen to breathe, food, medicine, decomposition of waste, and helps our planet withstand natural disasters.

Detailed explanation-3: -It is essential to human wellbeing, as it delivers services that sustain our economies and societies. Biodiversity is also crucial to ecosystem services-the services that nature supplies-such as pollination, climate regulation, flood protection, soil fertility and the production of food, fuel, fibre and medicines.