Question

How can biomass be used as a source of energy?(1 point)
Responses

Biomass can only be used to create building materials
Biomass can only be used to create building materials

Biomass can only be composted and used as fertilizer
Biomass can only be composted and used as fertilizer

Biomass can be directly burned or converted into biofuels like ethanol and biogas, which can then be burned to release energy
Biomass can be directly burned or converted into biofuels like ethanol and biogas, which can then be burned to release energy

Biomass is a type of solar energy and cannot be used to generate electricity
Biomass is a type of solar energy and cannot be used to generate electricity
Question 7
What role do decomposers play in a food web?(1 point)
Responses

They capture energy from the sun
They capture energy from the sun

They break down organisms and recycle nutrients
They break down organisms and recycle nutrients

They produce their own food
They produce their own food

They are the primary consumers
They are the primary consumers
Question 8
In a food web, what would likely happen if a top predator is removed?(1 point)
Responses

The number of herbivores would increase
The number of herbivores would increase

Decomposers would become more numerous
Decomposers would become more numerous

The number of producers would decrease
The number of producers would decrease

There would be no change in the food web
There would be no change in the food web
Question 9
Invasive species are a threat to ecosystems because they:(1 point)
Responses

Reproduce very slowly
Reproduce very slowly

Are always brightly colored
Are always brightly colored

Do not have a natural predator
Do not have a natural predator

Are always larger than native species

Answer 1

Here are the correct responses for each question:

**Question 6: How can biomass be used as a source of energy?**
**Response:** Biomass can be directly burned or converted into biofuels like ethanol and biogas, which can then be burned to release energy.

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**Question 7: What role do decomposers play in a food web?**
**Response:** They break down organisms and recycle nutrients.

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**Question 8: In a food web, what would likely happen if a top predator is removed?**
**Response:** The number of herbivores would increase.

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**Question 9: Invasive species are a threat to ecosystems because they:**
**Response:** Do not have a natural predator.

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Feel free to ask more questions or for further clarifications!