Unit 2 Water Chemistry and Water Quality Quiz

Of the three nutrient cycles, which one does NOT involve moving into the atmosphere during the cycle?

• Carbon

• Phosphorus

• Water

• Nitrogen

Eutrophication is the result of ________________.

• Excess carbonates and phosphates

• Excess nitrates and carbonates

• Excess nitrates and phosphates

• Excess carbonates and sulfates

Tags

NGSS.MS-LS2-4

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Organic pollution can include all the following EXCEPT ______________.

• Heavy metals

• Fertilizers

• Animal waste

• Pesticides

What is the impact of high levels of nitrates on an organism's physiology?

• It can act as a neurotoxin, impairing nerve functions

• It can damage the respiratory system

• It can interfere with the uptake of oxygen in the blood

• It can act as a hemotoxin, causing internal hemorrhaging.

The Carbon cycle is vital is that it ______________.

• Recycles and releases Carbon for use in synthesizing biomolecules such as carbohydrates

• Recycles and releases Carbon for use in producing energy molecules such as ATP.

• Recycles and releases Carbon for use in nitrifying the soil.

• Recycles and releases Carbon for use in balancing the pH of water.

Tags

NGSS.MS-LS2-3

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Is Eutrophication a natural process? Explain.

• Yes, because as a lake ages more nitrogen diffuses into the water, combining with oxygen to form nitrates.

• Yes, because as a body of water ages it begins to fill in with silt from the land, adding more nitrates into the water.

• No, because it's only caused by human activities such as excessive fertilizer use.

• No, because it can only occur in artificial bodies of water such as urban lakes and ponds.

Tags

NGSS.MS-LS2-4

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A Nitrate has the chemical formula ____________

• CO₃^2-

• NO₃^-

• PO₄^3-

• NH₄⁺

Tags

NGSS.MS-PS1-1

What is the relationship between water temperature and dissolved oxygen?

• A direct relationship. As one increases the other increases, and vice versa.

• An inverse relationship. As one increases the other decreases and vice versa.

• An exponential relationship. As one increases the other increases by 50%

• There is no relationship

Tags

NGSS.HS-ESS2-5

A marine biologist tests a tissue sample from a Mako shark, an apex predator, for pollutants and notes high levels of mercury. She then tests a tissue sample from a basking shark, a plankton feeder, and discovers the basking shark contains low levels of mercury. Why would the basking shark contain less mercury than the Mako shark, despite the fact the basking shark is one of the largest fish in the ocean and much bigger than the Mako?

• Bigger organisms accumulate less toxins due to having a larger body size

• The basking shark's ampullary organs enable it to detect and avoid plankton contaminated with mercury

• The mercury is higher in the Mako due to biomagnification, because the Mako is an apex predator that feeds at the top of the food pyramid, while the basking shark feeds near the bottom of the food pyramid

• Bigger animals such as the basking shark are better at metabolizing and getting rid of toxins, as larger animals have slower metabolisms and so are less affected by toxins.

Tags

NGSS.MS-LS2-4

A Carbonate has the chemical formula

• NO₃^-

• PO₄^3-

• Na⁺Cl^-

• CO₃^2-

Tags

NGSS.MS-PS1-1