Telegram group: T.me/BBCNOUN ====== BIO412 ====== 1. As debris sinks and decays, the bottom waters especially in eutrophic lakes, can become anoxic and nutrient rich while the surface waters become nn --->> nutrient poor nutrient rich chemical deficent stratified 2. --------------are mainly fed by rainfall and are therefore nutrient poor --->> Bogs Bush burning soils habitats 3. lakes may become stratified in summer due to the heating of the surface -------- structures --->> waters chemicals planktons 4. The word ecosystem is relative term applied to a whole community of organisms and its -------- as one unit vegetation resources minerals --->> environment 5. Nigeria identified all except the following as one of its most pressing environmental issues as its project under New Partnership for Africa’s Development n --->> terrestrial environment marine environment coastal environment freshwater environment 6. Mangrove swamps and salt marshes are dominated by the influence of tides and by high salt content of the soil and------------ --->> water chemicals acid substances 7. ----------- development means accounting for services provided by natural environments, which are not for free goods but must be included in costing economic activities --->> sustainable economic artificial mineral 8. In soils where worms are absent the horizons are very pronounced and referred to as -------- --->> podzols Gels loamy sandy 9. The main features of the abiotic environment; are climate, soil and ---------- statusn --->> water oil vegetation resources 10. Sustainable development advocates leaving to future generations a stock of ----------------- resources no less than that inherited by previous generations --->> natural mineral artificial chemical