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1#

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Figure: The buildup of toxins iq-ui3j+:z4bdoe 6 ogy5 rlus(n food chains

Using the Figure, calculate the amount of increase in ppm of toxins from the algae to the fisherman.

A. 13.55

B. 13.59

C. 13.51

D. 2.71

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2#

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Figure: The Great Pacvpxs0q(6h 05c*p4olem y,ami ific Garbage Patches

The Great Pacific Garbage Patch is an extensive collection of garbage that occupies large areas in the Pacific Ocean. It is made up of mostly small pieces of broken-down plastics that increase the turbidity of the top few meters of the water.

Identify which of the following describes the marine pollution shown in the Figure.

I.
It results from waste being released into both fresh and marine water bodies.
II.
It is created by the movement of ocean currents.
III.
It is classified as “floating debris” as a pollution type.

A. I, II, and III

B. I and II only

C. II and III only

D. I and III only

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3#

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Determine when eutrophication occur-kvdv l 6 .rg2aa3wyyg ,b-rq3s.

A. Freshwater bodies “die” and contain no living things.

B. Freshwater species adapt to pollution and become tolerant.

C. Marine ecosystems are at the final stage of succession.

D. Inputs of nutrients cause abnormally large plant and phytoplankton growth in freshwater and coastal estuaries.

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4#

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Identify which of the following is no cpcvwv1w .3*.re ze6wt a correct match of a type of water pollutiec6 e31vcr*.wvzww p. on and major sources of that type:

A. Type of water pollutant is Infectious agents (pathogens) (e.g. bacteria),Major sources is Human and animal faeces

B. Type of water pollutant is Inorganic chemicals (e.g. acids),Major sources is Industry, households

C. Type of water pollutant is Sediments (e.g. silt),Major sources is Human and animal faeces

D. Type of water pollutant is Heavy metals (e.g. lead, mercury),Major sources is Landfills, mining waste

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5#

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Figure: Decomposition rates for common marine debris ;numfle)oa :- items

Suggest which of the following could make the biggest difference in solving the issue represented in the figure.

A. Using cloth diapers

B. Drinking liquids only using reusable bottles.

C. Stopping smoking.

D. Using reusable shopping bags.

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6#

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Figure: The Great Pacific Garbage Patcl i-qpf7((pzs- v eka(hes

The Great Pacific Garbage Patch is an extensive collection of garbage that occupies large areas in the Pacific Ocean. It is made up of mostly small pieces of broken-down plastics that increase the turbidity of the top few meters of the water.

A common model addressing strategies to reduce pollution and its effects is called the “Replace, Regulate, Restore” model.

Deduce which of the following strategies would be considered a “restore” (cleaning up and restoring) strategy for dealing with this type of water pollution.

A. Stopping the use of plastic bags and single-use plastic containers.

B. Using Clean-up Vessels to remove the trash from these areas

C. Legislating to create higher fines for boats that are caught littering in the ocean.

D. Educating children about the existence of the Garbage Patch through the use of pictures and videos.

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7#

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Determine which of the following correctly describes biotio 4 w,tr5 mru.jbye3)hc indices.

I.
They indirectly measure pollution by counting individuals of species that are indicators of the presence of certain types of pollution.
II.
They can be calculated using mathematical formulas.
III.
They are classification tools similar to a dichotomous key.
IV.
They measure the amounts of key water pollutants.

A. I, II, III, and IV

B. III, and IV only

C. I, and II only

D. I, II, and IV only

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8#

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Outline how aquaculture *jc4wlg 2dl5ccan impact its surrounding environment.

A. Aquaculture has no negative impacts as it can be controlled well and does not involve the addition of extraneous compounds.

B. The use of genetically modified fish can lead to an increase in biodiversity when these fish reproduce with wild species.

C. Aquaculture can include the use of antibiotics and hormones, which can spread through the water and impact other aquatic organisms.

D. Fish feed can accumulate in the system, leading to an increase in phosphates and nitrates that can biomagnify across the food chain.

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9#

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Figure: The buildup of toxins ;ch(d 3l-ut byvt) )jlin food chains

Identify the process that is represented by the Figure.

A. Bioaccumulation

B. Eutrophication

C. Acidification

D. Biomagnification

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