What causes soil to form? Choose 2

• Dead plants and animals decompose in their environment

• Humas is dug up from within the subsoil

• Litter is broken down by mushrooms

• Rocks roll down a hill into a stream.

The MAIN  thing Decomposers do for the the soil is the following:

• Store moisture
• Burrow deep in the soil
• Make space for air and water
• Break down and digest dead organisms

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One key role of soil is to 

• Provides support and nutrients to plants
• Eat 
• Utilized for fuel 
• Be your best friend 

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A teacher is setting up the terrarium shown in a science classroom. Which of these organisms is best suited for the terrarium?

• Blue Jay
• Lobster
• Snail 
• Water lily

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How can a tree become part of the soil? Select 2

• clay must be present

• the tree had to die

• herbivores must be present

• decomposers must be present

What is one reason why rich soils are important?

• they store stars

  star storage

• rock storage

• provide nutirents

• supply plant color

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Which things will become part of the soil? Choose 3

• rocks

• leaves

• styrofoam

• wood

Decomposers are organisms that break down dead things. Which of these are examples of decomposers? Choose 3

• rabbit

• millipede or earthworm

• slug

• plastic bottle

• fungus or mushrooms

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Earthworms live in the soil, eating dead things, and leave droppings. Why is this important?

• for them to grow

• to make a home

• they make more soil and add nutrients

• they take away bad smells

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How long does it take for a paper bag to begin to decompose?

• 1 month

• 1 year

• 5 years

• never