Soil

The very top layer of soil is mostly made of

• Solid rock

• Clay and mineral deposits

• A mixture of minerals and organic material

• Mostly organic material (humus)

Tags

NGSS.MS-LS2-3

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Tags

NGSS.MS-ESS2-1

Name the Climatic factors that can affect soil.

• Temperature

• Temperature and wind

• Wind and rain

• Temperature, wind and rain

What are the main components of the soil? (choose the right answers)

• Rock

• water

• Salt

• Organic materials

Tags

NGSS.MS-LS2-3

Define Parent material.

• Parent material is the substance from which humus is formed

• Parent material is the substance from which soil is formed.

• Parent material is the substance where water gets contaminated

• Parent material is air, plants and water

How does water enter the soil?

• Through the stem of the plants

• Through the roots of a plant

• Through precipitation like rain and snow

• By evaporation from the oceans

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What are the factors involved in soil formation? (choose all the correct answers)

• Living things

• Climate

• Topography

• Parent material

What is topography? (choose all the correct answers)

• Topography refers to the lay of the land

• Topography refers to the seas

• Topography refers to elevation and steepness of hills

• Topography refers to steepness of roads

What is organic matter made up of? (choose all the correct answers)

• Water and sand

• Living things such as plants and animals

• dead plants and animals

• nutrients from dead plants and animals

How are microorganisms responsible in the formation of soil?

• They erode the rocks

• They get the water from the plants

• They recycle organic matter and help in formation of humus

• They help in the formation of humus

Tags

NGSS.MS-LS2-3