All Categories
precipitation that is stored between or within rocks
groundwater
the burning of a substance
combustion
kind of molecule that contains carbon
What are some processes of the carbon cycle?
Burning fossil fuels
Photosynthesis
Decay
process in which sugar molecules are broken down to release energy
cellular respiration
TWO (2) reasons why organisms need nitrogen.
1. To make proteins.
2. To make DNA.
When water ice transforms directly into water vapor.
Sublimation
Define: nonrenewable resource.
A natural resource that cannot be easily replaced by natural means at a pace quick enough to keep up with consumption.
the breakdown of substances into simpler molecular substances
decomposition
Equations for Photosynthesis and cellular respiration
*Study these*
photosynthesis
CO2+sunlight+H20= C6 H12 O6+O2+H20
Cellular respiration
C6 H12 O6+ O2+ H20= C02+ATP+H20
THREE (3) reasons why water is important to living things.
1. Water helps transport nutrients and waste within organisms.
2. Water helps regulate temperature.
3. Water is the universal solvent - it can dissolve many important chemicals.
precipitation that falls on land and then flows into rivers and lakes
runoff
the process that is the basis of the carbon cycle
photosynthesis
Identify two carbon sources
1. Decay
2. Respiration
TWO (2) reasons why carbon is important to living things.
1. Living things are carbon-based; carbon bonds to many different atoms.
2. Living things use carbon as fuel.
water in solid, or liquid form that falls from the atmosphere to earth
precipatation
The soaking of water into the ground.
infiltration
process in which water changes from liquid to vapor
evaporation
A consequence of too much nitrogen entering into an aquatic ecosystem.
Algal blooms
process in which a vapor cools and returns to liquid
condensation
Nitrogen fixation occurs when nitrogen gas (N2) is converted into another form that most organisms can use.
Which organisms perform most of the nitrogen fixation on Earth?
Bacteria in plant roots and soil.
process in which plant releases a large amount of water vapor
transpiration
ways human activity is increasing the amount of carbon in the atmosphere
burning of trees
process that changes nitrogen gas into forms that plants can use
fixation
identify other potential global effects of these changes in CO2 levels
higher temperatures
Acidic ocean