Rocks and soil

Question 1

Which statement best describes what soil is made of?

Accepted Answer

Soil is a mixture of broken-down rock particles and decomposed organic matter.

Answer

Soil is composed of water and air only.

Answer

Soil forms in a few weeks as rocks break down.

Answer

Soil is made only of sand particles.

Question 2

Ava is writing a report about the dirt from her backyard. Which sentence correctly explains what the dirt is made up of?

Accepted Answer

The dirt is made of tiny pieces of broken rock and tiny bits of decayed plants and animals.

Answer

The dirt is only tiny pieces of broken rock.

Answer

The dirt is only pieces of dead plants and animals.

Answer

The dirt is made of big rocks and whole leaves.

Question 3

Which of the following best tells what soil is made of?

Accepted Answer

Broken‑down rock particles and decomposed organic matter (humus)

Answer

Just dead leaves and sticks

Answer

Whole rocks that have never changed

Answer

Only sand and water

Try three questions