block 2

• What is a natural ecosystem?

  a natural ecosystem are high levels of biodiversity. Natural processes keep the ecosystem in balance.
• What is an engineered ecosystem?

  In an engineered ecosyste, humans control the number and types of features. Levels of biodiversity are reduced which means there are fewer types of living things. Human input is needed on a regular basis to main the system
• What is sustainable food production?


  Sustainable agriculture is the production of food to meet the needs of the present without risking the ability of future generations to produce food they will need.
• What agricultural strategies do farmers use to be more sustainable?

  Integrated Pest Management (IPM), Drip Irrigation, Organic Farming, and Renewable Energy Resources,
• What are the 4 spheres?

  Atmosphere, Lithosphere, Biosphere, Hydrosphere,
• What is the Atmosphere?

  The Atmosphere includes:

  • Layer of gases extending upwards
  • Acts like a blanket and moderates temperatures
  • Blocks incoming solar radiation
  • Made up of about 78% nitrogen, 21% oxygen gas, 1% other gases
• What is the Lithosphere?


  The Lithosphere includes:

  • The rocky outer shell of the Earth
  • Consists of rocks and minerals that make Earth's landscape
  • About 50 to 150 km in thickness; the "crust"
• What is the Hydrosphere?

  The Hydrosphere includes:

  • Consists of all the water on, above, and below the Earth's surface.
  • Includes oceans, lakes, ice, groundwater, and clouds.
• What is the Biosphere?


  The Biosphere is the area where all life can exist within all 3 spheres.
• What are 2 ways that all the spheres can Interact?

  1. A goose flies in the (atmosphere) a lot during the day. It also swims in the (hydrosphere) sometimes. It then goes back to it's home in the (lithosphere). The goose itself is the (biosphere)

  
  

  1. Rain (hydrosphere) falls from clouds in the (atmosphere) to the (lithosphere) and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere).
• How does energy move through the trophic levels?

  Producers produce their own food through photosynthesis by getting energy from the sun. Primary Consumers consume producers. Secondary Consumers consume on Primary Consumers. And Tertiary Consumers feed on Secondary Consumers.
• What nutrients are key for life on Earth?

  Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur.
• How does carbon move through the Earth's spheres?

  Human activities release carbon into the (atmosphere). Carbon dissolves in water bodies (hydrosphere). Carbon is stored in sedimentary rocks under water (lithosphere). Carbon is cycles through organisms through photosynthesis (biosphere).
• How does hydrogen move through the Earth's spheres?

  Hydrogen exists in the (Atmosphere) as water vapor. Rain falls into bodies of water (hydrosphere). Hydrogen is used by organisms for photosynthesis (biosphere). Hydrogen can be found in minerals and rocks (lithosphere).
• How does nitrogen move through the Earth's spheres?

  Nitrogen makes up about 78% of the earth's (atmosphere). Nitrogen moves through living things (biosphere) as they consume nitrogen containing compounds. Nitrogen can enter water bodies through runoff (hydrosphere). Nitrogen can be stored in rocks and sediment (lithosphere).
• How does oxygen move through the Earth's spheres?


  Oxygen is constantly circulated throughout the (atmosphere). Oxygen can dissolve in water bodies (hydrosphere). Oxygen is essential in rocks and soils (lithosphere). Oxygen is used by plants for photosynthesis (biosphere).
• cellular respiration: glucose formula:


  (c6 h12 06) numbers mean how much there is
• proteins are made of nitrogen and nitrogen is needed to make dna
• lightning changes n2 into no3 (nitrates)
• photosynthesis formula:


  carbon dioxide + water -> sugar + oxygen
• cellular respiration formula


  sugar + oxygen -> carbon dioxide + water + energy