Ch 5 notes - env science

Ch 5 notes - env science

Multiple Choice

Where does all energy on Earth ultimately come from?

• The Earth

• The Sun

• Space

• Gravity

Multiple Select

Which of the following processes make food?

• Respiration

• photosynthesis

• Chemosynthesis

• Combustion

Multiple Choice

a lion is a

• consumer

• producer

Multiple Choice

a sunflower is a

• consumer

• producer

Multiple Choice

How much energy is transferred from one trophic level to the next?

• 0%

• 10%

• 20%

• 90%

Open Ended

What is the difference between a food web and a food chain

Multiple Choice

What is a trophic level?

• each step in a food chain/web

• different animals in a food web

• All the producers

Open Ended

What happens to the available amount of energy as you go up the food chain?

Multiple Choice

What are living organisms mostly made out of?

• Hydrogen

• Oyxgen

• Carbon

• Iron

Multiple Select

Which processes adds carbon to the atmosphere?

• Combustion

• Photosynthesis

• Respiration

• Chemosynthesis

Multiple Select

Which processes remove carbon from the atmosphere?

• Combustion

• Photosynthesis

• Respiraiton

• Chemosynthesis

Multiple Choice

What has happened to the carbon emissions over the past 200 years?

• Increase

• decrease

Multiple Choice

What is carbon sequestration?

• addition of carbon to the atmosphere

• removal of carbon from the atmosphere

Multiple Choice

What is nitrogen fixation

• removal of nitrogen from atmosphere into water

• removal of nitrogen from the atmosphere to nitrates in the soil

• addition of nitrogen to the atmosphere

• addition of nitrates to the atmosphere

Multiple Choice

Where is most of the Earth's nitrogen stored?

• in the atmosphere

• in living organisms

• in the soil

• in water

Multiple Choice

Can plants/animals use nitrogen from the atmosphere directly?

• Yes

• No

Multiple Select

What are the two ways that nitrogen can become fixed into the soil?

• Human activity

• phosphorloation

• Nitrogen fixing bacteria

• lightning

Multiple Choice

Where do nitrogen fixing bacteria live?

• Oceans

• Atmosphere

• Roots of legumes

• in animals

Open Ended

What role do decomposers play in the nitrogen cycle?

Multiple Select

Where do plants get their nitrogen from?

• Soil

• atmosphere

• animals

• animal faeces

• fertilizer

Multiple Select

Where do animals get their nitrogen from?

• eating plants

• eating animals

• breathing

• bacteria

Multiple Select

What is phosphorus needed for? select all

• proteins

• bones

• teeth

• cell membranes

• DNA

Multiple Choice

Where is most phosphorus stored?

• Roots of plants

• water

• rocks

• atmosphere

Open Ended

How is phosphorus released from rocks and available for absorption by plants?

Multiple Choice

Where do plants get their phosphorus from?

• eating animals

• the soil

• the atomosphere

• water

Multiple Choice

Where do animals get their phosphorous from

• eating rocks

• eating plants

• drinking water

• digestion

Open Ended

What is eutrophication?

Open Ended

Explain how acid rain forms?