Intro to Water
Where does rainwater fall on the PH scale?
5-6 slightly acidic considered neutral
Water changing from liquid to gas is an example of
Evaporation
What percent of Earth's water is freshwater?
2.5%
Most of our groundwater is used for...
Agricultural purposes
What crop uses more water than any other crop in the United States?
Corn
In water, there are two molecules, Hydrogen and Oxygen. What are the charges of the hydrogen molecules in water?
Both positive charges
Water released from clouds in various forms is an example of
Precipitation
What is the term for the mouth of a freshwater river meeting with the ocean?
An estuary
The water table
What crop requires the second most water to grow and humans rarely consume it?
Water that is attracted to other water molecules is an example of...
Cohesion
Water vapor turning back into a liquid is an example of
Condensation
What is the name of the largest estuary in the United States?
The Chesapeake Bay
Give an example of an impermeable layer that prevents water from flowing between aquifers.
Clay or rock
Why were they monitoring shellfish at the end of a watershed?
They are a keystone species
Water that is attracted to other substances is an example of...
Adhesion
Water vapor leaving plant leaves is an example of
Transpiration
In what area of a watershed would we find fast-flowing, cold water, with a low biodiversity?
High or on the top area of a watershed
What can we find directly above an aquitard?
An unconfined aquifer
This term means the addition of excess nutrients to a body of water
Eutrophication
Fill in the blank:
Differences in (.......) make water a polar molecule
Electronegativity
Water on the ground seeping into the soil is an example of
Infiltration
In what area of a watershed would we find slow-flowing, warm water, with a high biodiversity?
At the bottom or near the end of a watershed
What can we find directly below an aquitard?
A confined aquifer
What is the main cause of algal blooms?
Residential fertilizers