Phytoremediation and Duckweed Article

What is phytoremediation?

• A process of using chemicals to purify water

• A technique to increase soil fertility using fertilizers

• A green technology that uses plants to remove toxic components or contaminants

• A method of purifying air using machines

Tags

NGSS.HS-LS2-7

Which aquatic plant is highlighted for its phytoremediation ability in the article?

• Algae

• Duckweed

• Water hyacinth

• Lotus

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NGSS.HS-LS2-7

What is the optimal pH range for duckweed growth?

• 4.5 - 5.5

• 6.5 - 7.5

• 8.0 - 9.0

• 5.0 - 6.0

What is the primary nutrient requirement for duckweed growth?

• Calcium and sulfur

• Potassium and magnesium

• Nitrogen and phosphate

• Iron and zinc

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NGSS.MS-LS2-1

What is the reproductive behavior of duckweed described as?

• Sexual reproduction

• Vegetative reproduction

• Spore formation

• Asexual reproduction

What is the potential use of duckweed biomass?

• As a decorative plant

• As a pesticide

• As a high protein feed for livestock and bioenergy production

• As a fertilizer

Tags

NGSS.HS-LS2-7

NGSS.HS-ESS3-2

What is the term for plants absorbing pollutants from aquatic environments?

• Phytovolatilization

• Rhizofiltration

• Phytostabilization

• Phytoextraction

What is a challenge in using raw liquid manure as a growth media for duckweed?

• It has a pH that is too acidic

• It is too concentrated and toxic for duckweed

• It lacks sufficient nutrients

• It does not contain enough water

Which of the following is a common feedstock for producing bioethanol?

• Natural gas

• Crude oil

• Corn

• Coal

What is a major environmental benefit of using biofuels over fossil fuels?

• Biofuels emit less greenhouse gases

• Biofuels are more expensive

• Biofuels require more land to produce

• Biofuels are non-renewable

Tags

NGSS.HS-ESS3-4