ES Water Test

What percent of all the water on our planet is freshwater?

• 2.5 %

• 0 %

• 50 %

• 90 %

Check all of these that we can drink

• Glaciers

• Soil Moisture

• Lakes, rivers, and streams

• Underground water

• Ocean water

If we have access to sufficient, safe, nutritious food, then we have:

• Food Security
• Sustainability
• Bioremediation
• Protein Synthesis

Women and girls in developing countries bear the burden of gathering water. How can this impact their quality of life?

• Women/girls are subject to attack along their journey
• Unsafe water from streams/ponds are teeming with food/water-borne diseases
• Hours are spent gathering water which could be spent earning an education or working
• All of these

The amount of available fresh water that isn’t trapped in glaciers or snowfields and is suitable for human consumption on Earth is

• Less than 1%

• 5 %

• 1 %

• 30 %

How might biological organisms be used to remove contaminants from a water supply?

• Coliform bacteria in a water supply can eat harmful contaminants
• Bt corn planted near a water supply can remove harmful bacteria
• Oil eating bacteria can eat petroleum
• Biodiesel can be used to produce algae that cleanse the water supply

Petroleum as it occurs naturally contains (check all that apply)

• Wax

• Gasoline

• Natural gas

• Asphalt

• Petrochemicals that make plastic and spandex

Coliform bacteria originate from:

• River water and lake water.
• Ocean water
• The large intestinal tract of warm blooded vertebrates - feces.
• Stomach contents of all animals

Fecal coliforms found in water can be signs of potential health risks because:

• Other pathogenic bacteria are found in fecal contents and these can cause severe health risks in drinking water.
• It is difficult to test for fecal coliforms in a water sample
• Fecal coliforms are not pathogenic forms
• Pathogens only show up when fecal coliforms are tested.

Genetic engineering is possible because all organisms are based on the same

• proteins.
• DNA copies.
• plasmid loops.
• genetic code.