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Water Cycle

Water Cycle. Evaporation The process of liquid water converting into a vapor. Transpiration The process of a plant losing water through its tissue. Precipitation The process of water condensing and falling as rain or snow. Sunlight drives the water cycle. Water Cycle. Carbon Cycle.

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Water Cycle

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  1. Water Cycle • Evaporation • The process of liquid water converting into a vapor. • Transpiration • The process of a plant losing water through its tissue. • Precipitation • The process of water condensing and falling as rain or snow. • Sunlight drives the water cycle.

  2. Water Cycle

  3. Carbon Cycle • Biological processes take up and release carbon and oxygen. • Photosynthesis: • CO2+ H2O  C6H12O6 + O2 • Respiration: • O2+ C6H12O6  CO2 + H2O + ATP • Decomposition

  4. Geochemical - Erosion, volcanic activity • Biogeochemical - Decomposition of dead organisms, conversion into coal and fossil fuels. • Human activities - Mining, cutting/burning forests, burning fossil fuels

  5. Nitrogen Cycle • Needed to make amino acids.(what do we use these for??) • Nitrogen gas (N2) makes up 78% of atmosphere • Nitrogen Fixation: bacteria convert N2 gas in NH3. • Other bacteria convert NH3 into nitrates/ites. • Denitrification: bacteria convert nitrates into N2 gas

  6. Phosphorus Cycle • Forms part of life molecules such as DNA and RNA. • Mainly stored in rock and soil.

  7. Nutrient Limitation • Limiting nutrient – scarce or slow cycling nutrient that limits growth in an ecosystem. • Farmers use fertilizer. • Algal blooms.

  8. Biomes • A group of terrestrial ecosystems that have common abiotic factors and dominant communities. • Important Factors: • Soil • Climate Conditions • Precipitation and Temperature • Types of plants and animals

  9. Plants and animals differ based on their tolerance. • Ability to survive and reproduce in non-ideal conditions. • Adaptation – inherited characteristic that increases an organisms chance of survival. • Often specific to biomes

  10. Other Land Areas • Mountain Ranges • Found on all continents, conditions vary with elevation. • Polar Ice Caps • Border the tundra • Cold year-round. • Very few organisms

  11. Aquatic Ecosystems • Determined by depth, flow, temperature, and chemistry of water. • Freshwater – flowing (rivers, streams), standing(ponds, lakes), wetlands. • Estuary – salt marsh, mangrove swamp • Marine – photic, aphotic; intertidal, coastal ocean, open ocean, benthic zone;

  12. Plankton - basis of food chain in both freshwater and saltwater. Depth determines amount of light available Latitude is important Chemistry – salt, nutrients, oxygen

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