Test
Soil Quiz
Este test tiene tiempo límite, así que se abre en el reproductor de siempre.
Preguntas del test (13)
1Soil formation begins with the weathering of
- Alitter
- Bbedrock
- Cthe A horizon
2Soil that is rich in humus has high
- Afertility.
- BWater content.
- Csand content.
3When earthworms add their wastes to the soil, then die and decay in the soil, they are contributing to the formation of
- Asilt.
- Blitter.
- Chumus.
4Living organisms in soil help to
- Aslow the rate of soil formation.
- Bbuild up the C horizon.
- Cmix the soil and make humus.
5Decomposers are the soil organisms that
- Astore moisture in the soil.
- Bbreak down and digest the remains of dead organisms.
- Cmake spaces in the soil for air and water.
6Soil is a valuable resource because it
- Ais important to all living things on land.
- Bcontains sand and gravel.
- Cis rich in decomposers.
7What can cause the loss of soil that is not protected by plant cover?
- Achemical weathering
- Berosion by water or wind
- Cmechanical weathering
8Most of the work of mixing humus within the soil is done by
- Afungi.
- Bants.
- Cearthworms.
9A permeable rock weathers easily because it
- Ais made up of small particles.
- Bcontains many small, connected airspaces.
- Cis made up of only one mineral.
10In which soil layer would you find loam that is rich in humus
- AA horizon.
- BB horizon.
- CC horizon.
11The texture, or particle size, of soil determines
- Asoil fertility.
- Bwhether the soil is topsoil or subsoil.
- Chow much air and water the soil can hold.
12The type of soil called loam is made up of
- Apure humus.
- Bmostly clay.
- Cnearly equal amounts of silt, sand, and clay.
13In a cross section of soil, the B horizon consists of
- Aclay, minerals, and little humus.
- Bhumus only.
- Cpartly weathered rock.
Información
- Descripción
- soil quiz
- Autor
- Samantha Aitkens
- Idioma
- English
- Visitas
- 256
- Etiquetas
- Valoración
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