Everything else

photosynthesis

process organism convert solar energy to glucose (stored chemical energy)

Cellular respiration

using oxygen to break down glucose → energy for organism

Photosynthesis equation

6CO₂ (g) + 6H₂O (l) → C6H12O6 (s) + 6O₂

cellular respiration

C6H12O6 (s) + 6O₂ → 6CO₂ + 6H2O
this process forms ATP

Comparing

Photosynthesis
-generates energy
-produces oxgyen+glucose
-plants, algae, cyanbacteria

Cellular resp
-releases energy
-produces CO₂ + water
-most organisms on earth

Greenhouse effect

warming of earth due to trapping of heat by greenhouse gases in the atmosphere

nat process for → suitable temp for organisms to live

Natural greenhouses gasses

water vapour, CO₂, methane, nitrous oxide

Human activity effect

human activity have significantly increased concentration of greenhouse gas → enhanced greenhouse effect → global warming

fossil fuel like coal, oil = burned. main contributer to human ↑ emmissions

Solutions to reduce

renewable enegry
↑ energy efficancy
plant trees, practice sustainable land management

Carbon footprint

Carbon footprint is the amount of carbon dioxide emissions associated with all the activities of a person or other thing

Carbon footprint key contributors

Food
- 10-30% of household carbon footprint
- production =68% of household emmisions

Household energy
-heating, cooling, fridge = largest contributor to carbon footprint

Personal transport
-cars, trucks=most amount of CO₂
-use PT

Firestick farming

●       lit small fires in the COOLER MONTHS as moved around the land; helped them hunt for food and clear pathways

●       led to Bush regeneration

●    less build up of dry grass, ↓ likelihood of really bad summer busfire

Energy= returns Carbon to atmosphere for trees reabsorb
Returns nutrients to soil (ash that acts as a natural fertilizer)