If the second term of a G.P is 2 and its sum to infinity is 8, find its fifth term.

Conservation protects biodiversity – variety of species, genes, and ecosystems. Threats: habitat destruction, overexploitation, pollution, invasive species, climate change. Species extinction rates far above natural background.

Methods: protected areas (national parks, reserves), sustainable harvesting, captive breeding, habitat restoration, legislation (CITES controls wildlife trade), education and awareness.

Nigerian conservation challenges: deforestation, poaching, pollution, growing population pressure. Protected areas include Yankari Game Reserve, Cross River National Park. Conservation requires balancing human needs with environmental protection.