Duplicate of ESS Topic 5: Soil

The main nutrients in soil are

gullying is a type of soil erosion where

wearing away of topsoil by the natural physical forces of water, wind or farming activities

Which of the following contribute to decrease in agricultural land?

which of the following are factors that determine what food a society eats/grows?

Type of farming using more land & lower density of planting & lower inputs & outputs

What is the correct order of a soil profile

This method helps prevent erosion by

Adding lime to the soil helps counteract acidification by

___ tend to reduce soil fertility more than ___

Sustainability of terrestrial food systems are influenced by

Which of these holds the most water?

deforestation, intensive grazing, ubranization, monoculture

What is parent material?

which is the best explanation of the advantage of contour ploughing?

Which type of soil has the highest primary productivity?

What is it called when soil is naturally moved?

yield of food per unit area __ is greater in quantity, lower in cost, requires less resources

food waste is

build up of salts in soil, eventually to toxic levels for plants

Which type of farming system is more likely to have a high environmental impact?

The Dust Bowl was largely caused by

Soil is composed of

Which is the best soil texture for drainage?

modern agricultural practices tend to

decomposition, weathering, nutrient cycling

reasons for the decline of land for food production per capita

food is grown by farmers for their own use or use in the local community

which is a method for increased sustainability?

40%sand 40%silt 20%clay

Which of the following lists only soil storages?

How do you measure soil texture?