IB ESS Topic 5: Soil

Which of the following lists only soil storages?

What is the correct order of a soil profile

decomposition, weathering, nutrient cycling

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

Soil is composed of

What is it called when soil is naturally moved?

Sustainability of terrestrial food systems are influenced by

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

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

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

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

Which is the best soil texture for drainage?

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

Which of the following contribute to decrease in agricultural land?

The Dust Bowl was largely caused by

How are soils formed?

What is parent material?

Which of these holds the most water?

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

This method helps prevent erosion by

Which type of soil has the highest primary productivity?

___ tend to reduce soil fertility more than ___

40%sand 40%silt 20%clay

modern agricultural practices tend to

Which of the following contains only inputs to the soil?

gullying is a type of soil erosion where

The main nutrients in soil are

which is a method for increased sustainability?

How do you measure soil texture?

deforestation, intensive grazing, ubranization, monoculture

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

reasons for the decline of land for food production per capita

food waste is

Adding lime to the soil helps counteract acidification by

Which of the following is not a technology improvement in agriculture?