Waste From Organisms ~ B1.6

Question 1

What are the conditions needed for microorganisms to decay?

Answer 1

~Moisture
~Warmth
~Oxygen

Question 2

What is the carbon cycle?

Answer 2

The constant cycling of carbon.

Question 3

How is carbon taken from the atmosphere?

Answer 3

Through photosynthesis as carbon dioxide

Question 4

How is carbon dioxide put into the atmosphere?

Answer 4

Through resperation as carbon dioxide

Question 5

What is the order of the carbon cycle?

Answer 5

Plants take in CO2 for photosynthesis
Animals feed on plants
Or microorganisms will feed on the plants and respire CO2
When the animals die, microorganisms decay the animals and respire CO2 back into the atmosphere
Or when the animals die they may fossilise and then be burned via combustion as a fuel

Question 6

Benefits of recycling organic kitchen or garden waste

Answer 6

~Less methane produced, which helps to reduce global warming
~Does not take up precious space in landfill sites
~Provides plants with nutrients
~Cuts down on buying peat-based composts
~Most councils offer garden-waste collection

Question 7

Problems of recycling organic kitchen or garden waste.

Answer 7

~Many food waste items cannot be composted at home
~Food waste left lying around could attract vermin
~Fewer than half of councils offer food-waste recycling schemes