Paper 2 Biosphere and Hydrosphere

Year/Version (21) / Q.1 / Q.2 / Essay Q.3 / Essay Q.4 / Essay Q.5
2010 / Succession, deforestation / Water pollution of rivers / Conservation of species / Flooding/control / Conservation of marine species
2011 / Biotic/abiotic, succession, deforestation / Water cycle/how weather affects it, non-point source pollution in rivers/
eutrophication / Population/
LEDC & MEDC/ sustainability / Endangered species/
conservation strategies / Patterns of water usage/effects of agriculture & industry on water/
sustainability
2012 / Photosynthesis/NPP/
Abiotic/biotic factors / Water usage/point & non point pollution of rivers / Human activity and flooding / Threats to tropical rainforests/
conservation / Pollution of rivers/sustainable water cycle
2013 / Water cycle/soil porosity & infiltration/flooding / Nutrient cycle/energy / HEP/+ & - of dams / Marine pollution/oil / Conservation strategies for species
2014 / Biomes/abiotic & biotic factors/deforestation/ conservation plans (forest) / Dams + & - / Food webs/biomes-human influence/
conservation / Water cycle/water usage + & - effects / Human activity on wetlands (mangroves)/
ecosystem conservation
2015 / Aquifers types/water cycle- human influences on both / Food web/conservation of habitats/ human threats/ importance of zoning- Galapagoes / Biomes- Forest conservation/
sustainability / Water pollution-eutrophication / NPP/sustainable use of resources for growing populations
2016 / Ecosystem relationships and conservation.
Wetland Conservation plan / Water Pollution
Eutrophication.
Solutions to river pollution / Population
Environmental implications due to pop increase / River Flooding
Cause, effect, solutions / Ecosystem conservation, species extinction

Major Topics for 2017:

Hydrosphere:

For water cycle know your diagram and all associated vocabulary and how weather/climate and human activity influence that cycle (Aquifers/dams).

Water pollution- Point and non-point is a common question too-Ocean pollution

Biosphere:

Ecosystems: For food webs/food chains/pyramids know associated vocabulary. For energy focus on 10 % rule and losses as you move up the food chain. For nutrients focus on stores (soil, biomass) and flows (tropical rainforest nutrient flow is common)

Conservation is a popular topic remember your Biome conservation plans. Cause, effects, solutions

Possible Essay: Population increase and resource use, conservation of an ecosystem, water pollution.