Where is it?
The amount of Earth’s water is unavailable for humans to consume due to its high salinity.
97%
Why must humans clean water before using it.
Clear river water may contain contaminants that could harm humans.
Hippopotamus
What is is favorite animal?
How does warmer water temperature affect plants living in the ecosystem
Holds less dissolved gases, causing plants to use gas stores in their cells.
How does turbidity describe a water system’s health
turbid water contains more suspended solids and less dissolved gases
Why such a small amount of freshwater is available for humans to readily use.
Majority of freshwater is frozen in glaciers and polar ice caps.
How is freshwater treatment different from wastewater treatment
Wastewater is treated after human use and freshwater is treated before human use
The year he was born.
What is 1973?
How could an increase in water temperature affect fish
Contains less dissolved oxygen, causing fish to stress and die.
Why does a highly turbid measurement indicate an unhealthy water system
High turbidity increases water temperature, kills organisms with lower dissolved gases, and holds more suspended solids and pollutants.
71%
The first step in cleaning wastewater.
Water goes through bar screens and rags, sticks and other large solid waste is removed.
The country where he served in the US Peace Corps.
What is Bolivia?
How can a change in the pH of water affect the ecosystem
Changes in pH levels affects which biological and chemical process can occur.
how humans can conserve water resources
Using less water and properly disposing of garbage and pollutants
77%
The last step in treating wastewater
Water is treated with ultraviolet light to kill harmful organisms.
Where he went to college for undergraduate studies.
What is Boston University?
why an algae bloom forms
Increased amounts of fertilizer from farms and lawns promote the fast growth of algae.
an organism whose status in an ecosystem is analyzed as an indication of the ecosystem's health
Bioindicator
The percent of the freshwater that is liquid
23%
How the Durham Wastewater Treatment Plant is supplied with power
Methane that is produced as a byproduct from the plant itself
The state where he grew up as a child.
What is Indiana?
How does an excess of nitrates and phosphates impact a water system
High levels of nitrates and phosphates cause algae to bloom and die, reducing dissolved oxygen levels, suffocating and killing off all organisms.
Excessive amounts of nitrates and phosphates in water can lead to this.
eutrophication