Decomposers, Peat, and Permafrost Quiz

What is the role of decomposers in an ecosystem?

• Creating new species

• Producing energy

• Controlling population

• Recycling nutrients

How is peat formed?

• By the accumulation of sand and rocks

• Partially decayed plant material in wetland environments

• By volcanic activity

• Through the process of erosion

What is the importance of peat?

• It is a type of food that is high in nutrients.

• It is a type of rock used in construction.

• It is a valuable source of fuel and has various uses in horticulture and agriculture.

• It is a harmful pollutant that should be avoided.

How does climate change affect permafrost?

• Permafrost melts due to increased precipitation caused by climate change.

• Permafrost remains unaffected by climate change.

• Permafrost thaws due to rising temperatures caused by climate change.

• Permafrost freezes due to rising temperatures caused by climate change.

What is the decomposition process?

• The process of converting organic matter into inorganic matter

• The process of breaking down inorganic matter into simpler organic matter

• The breakdown of complex organic matter into simpler organic matter by the action of microorganisms.

• The process of combining simple organic matter to form complex organic matter

What are the stages of decomposition?

• rot, decay, putrefaction, deterioration

• growth, maturity, decline, death

• fresh, bloat, active decay, advanced decay, dry/remains

• fresh, ripe, overripe, rotten

Which organisms are considered decomposers?

• Birds, reptiles, and amphibians

• Bacteria, fungi, and some insects

• Plants, rocks, and water

• Mammals, fish, and crustaceans

What is the primary source of energy for decomposers?

• Sunlight

• Water

• Dead organic matter

• Minerals

What is the main component of peat?

• Mineral rocks

• Animal bones

• Partially decomposed plant material

• Volcanic ash

How does permafrost affect the release of greenhouse gases?

• By increasing the amount of oxygen in the atmosphere

• By reducing the temperature and slowing down the decomposition of organic matter

• By absorbing greenhouse gases and preventing their release

• By releasing carbon dioxide and methane when it thaws