Chapter 3 Agriculture and the Environment Number 2

The ideal soil is a mixture of sand, silt and clay is called ______

• fertilizer

• loam

• foam

• silt

The _________ of the soil is a combination of living organisms and their dead remains. As with other plants and animals, the organisms that live within soil form part of the complex interactions within food webs and the recycling of materials for future use.

• organic content

• air content

• water content

• inorganic content

clay soils have small air spaces that can limit the amount of oxygen reaching plant roots. This in turn can limit respiration and the amount of possible root growth.

• air content

• water content

• organic content

• artificial content

water tends to cling to the surface of particles. A clay soil has far more particles, and therefore a far larger surface area, compared with a sandy soil.

• water content

• air content

• organic content

• inorganic content

which is NOT a characteristic of sandy soil?

• free draining (because of the large air spaces between particles)

• high water-holding capacity

• quick to warm up

• easier to cultivate

Which is NOT a characteristic of Clay soils?

• high water-holding capacity

• hard to cultivate

• small air spaces

• easy to warm up

__________is typically defined as 'the cultivation of animals, plants and fungi for food and other products used to sustain human life'.

• agriculture

• farming

• crop science

• horticulture

__________is the cultivation and production of food to meet the needs of the farmers and their families

• Subsistence farming

• Commercial Farming

• Mixed Farming

• Arable Farming

________is the cultivation of products with the main focus of selling them for cash.

• Commercial Farming

• Subsistence farming

• Mixed Farming

• Arable Land

is the production of plants for consumption by humans. Examples include growing rice, maize, wheat and soybeans.

• Subsistence Farming

• Commercial Farming

• Arable Farming

• Pastoral Farming