Geoecology

Which component makes up the largest percentage of soil composition

• Air

• Water

• Mineral Matter

• Organic Matter

What is the most common soil in Ireland

• Peat

• Gley

• Podzol

• Brown Earth

In which horizon can the hardpan develop?

• O

• A

• B

• C

The artificial watering of land is known as...

• arrigation

• sprinkler system

• irrigation

• horizon

Which structure has the smallest grains?

• Blocky

• Platy

• Crumby

What are the clumps of soil known as?

• Crumbs

• Grains

• Peds

• Horizons

Soil from which parent rock is rich in calcium?

• limestone

• sandstone

• granite

• basalt

Which process is an extreme form of leaching that adds acid to the soil and makes it infertile?

• Salinisation

• Podzolisation

• Calcification

• Hydrolysis

Which one of the following is FALSE about brown earth soils?

• Water content is low

• Humus content is high

• Living organisms content is high

• Structure is crumb

Acid rain is a serious problem in some countries.

• True 
• False