Question | Answer |
process in which energy from sunlight is used to change cabon dioxide and water into glucose | photosyntesis |
process through which oxygen and glucose are combined to produce carbon dioxide and water | respiration |
simple sugar made during photosynthesis | glucose |
4th most abundant element on Earth | carbon |
the process in which carbon is used by, and is returned to, the environment | carbon cycle |
the breakdown of organic matter | decomposition |
element that makes up nearly 21% of our atmosphere | oyxgen |
the fow of oxgen through the environment | oxygen cycle |
carbon and oxygen cycle between... | living and non-living things in the environment |
the burning of fossil fuels can cause an increase in this gas... | carbon dioxide |
the clearing of forest areas | deforestation |
a naturally occuring effect in which gases trap heat close to the Earth's surface | greenhouse effect |
the process in which water consumes energy and changes from a liguid state to a gas | evaporation |
the process of changing nitrogen gas into usable nitrogen compounds | nitrogen fixation |
water that falls to Earth from a cloud | precipitation |
the process from which water evavaporates from a plant's leaves | transpiration |
living things that eat other living organisms | consumer |
organisms that break down dead organic matter into simpler parts | decomposer |
a model that shows how energy moves from one level to another through an ecosystem | energy pyramid |
overlaooing food chains | food web |
Organisms that make food through photosynthesis | producer |
each step in the movement of energy through an ecosystem | trophic level |
the proscess of water changing from a water vapor to tiny doplets of liquid | condensatiion |
the percentage of usable fresh water on Earth | less than 1% |