Sample que stions 1. Answer these short questions:
(i) Use the terms in the box below to complete the definition and description of soil in your copy.
water 25% A horizon natural resource thin uppermost layer horizons organic matter 5%
Soil is the ____________________________________ of the earth. Without soil, plants could not grow and there would be no food for land animals. Therefore, soil is an essential __________________ _____________________ (created by nature and a useful resource to humans).
Soil has four main ingredients, which are mineral particles 45%, ______________________________, air 25% and __________________________________. Soils have layers called _________________. The _________________ is the most fertile layer.
(ii) List three uses of soil and briefly explain two of these uses. 2. Copy this incomplete soil profile.
Exam hint!
When sketching, use a ruler for straight lines for neatness. Make your sketch big enough to be clear and easy to label. Label all parts of the sketch needed. Include necessary details only. Use shading or colours if you have time.
(i) Label each horizon. (ii) Use this diagram to explain how leaching occurs. (iii) Explain two impacts leaching can have on soil.
3. (i) Name one Irish soil type that you have studied. (ii) Give two examples of where this soil type is most common.
(iii) Describe the structure/composition of the soil you have chosen under the following headings: Colour, Fertility, Leaching (present or not), Uses