Nitrogen Cycle
What is the most abundant gas in the atmosphere?
Nitrogen
Give three types of precipitation.
Rain, snow, sleet, hail
What is needed for plants to perform photosynthesis? (MUST HAVE ALL THREE)
Water, CO2, Sunlight
What is an organism that can make it's own food?
Producer or autotroph
What trophic level has the biggest number of organisms?
Producers
What process must nitrogen go through to be fixed?
Nitrogen Fixation
Water makes up what percentage of your body?
60%
The process that produces carbon dioxide when dry trees are exposed to a spark is called
Combustion
How must consumers get their energy?
By eating another organism - plant or animal
Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are part of which chemical cycle?
Carbon Cycle
What happens in the process of assimilation?
Nitrogen is taken up by the roots of plants
What is transpiration?
Evaporation of water from plants
What would happen to the movement of carbon if it were always dark?
The carbon cycle would not be possible because it needs sunlight.
What is the difference between a food chain and a food web?
Food chain is one way through an ecosystem. Food web are multiple ways.
List three ways that we could reduce the extra carbon that is getting into the atmosphere.
Plant trees, use less fossil fuels, use more alternative/renewable energy, remove carbon dioxide from power plant/exhaust omissions, conserve electricity, electric cars etc.
How do consumers get nitrogen?
By eating plants or other animals
Why is the sun so important in the water cycle?
It causes evaporation to happen - keeps the cycle moving.
What process does algae perform in the carbon cycle?
Photosynthesis
This type of consumer obtains all of its energy by eating only producers.
Herbivore
Where does all of the carbon and nitrogen in organisms originate from?
The atmosphere
What is the name of the process where microorganisms convert nitrates back into nitrogen gas and it is released into the atmosphere?
Denitrification
Which process turns water vapor into a liquid?
Condensation
What process adds more carbon to the atmosphere?
Respiration
What percentage of energy is passed on to the next trophic level?
10%
What is the source of energy for food chains and food webs?
Sun