F
water evaporating from plant leaves
transpiration
The movement of water through soil
what is percolation
The top of the saturated zone in an aquifer is called what
What is a water table
This number represents the amount of minutes without oxygen, days without water, and weeks without food for human survival
What is 3
The process by which inert atmospheric N2 is converted into biologically usable form
What is nitrogen fixation
water turning from a gas into a liquid
Groundwater is stored in and moves slowly through layers of soil, sand, and rocks called what
What is aquifers
The amount of gallons of water residents of Sub-Sahara Africa use per day
2-5
Percentage of the human body that is water
What is 70%
A microorganism that can obtain energy from inorganic substrates
What is lithotroph
Water falling back to Earth in the form of rain, snow, sleet, or hail
What is precipitation
The percent of rock that contains pore spaces
What is porosity
The number of people in the world who still do not have access to safe water
What us 1.1 billion
The percentage of Earth's water found in oceans
What is 97%
These are the main ingredients in synthetic fertilizers
What is nitrogen and phosphorous
Water flowing over the Earth's surface
What is run off
The measure of ability to transmit fluids
What is permeability
The percent of all illness in developing countries caused by water related diseases
80%
A man-made or natural lake used to store water
What is a reservoir
The 2 causes as to why phosphates end up in water and soil
What is weathering and erosion
The process by which water enters the soil from the ground surface
What is infiltration
The area where water fills the aquifer is called what
What is the saturated zone
Percentage of waste water in developing countries is discharged directly into rivers and streams without treatment
What is 90%
This gas makes up 78% of what we breathe
Whats is Nitrogen
Things, materials, substances, and components found in the natural environment
What is natural resources